""" Vision Transformer (ViT) in PyTorch

A PyTorch implement of Vision Transformers as described in:

'An Image Is Worth 16 x 16 Words: Transformers for Image Recognition at Scale'
    - https://arxiv.org/abs/2010.11929

`How to train your ViT? Data, Augmentation, and Regularization in Vision Transformers`
    - https://arxiv.org/abs/2106.10270

`FlexiViT: One Model for All Patch Sizes`
    - https://arxiv.org/abs/2212.08013

The official jax code is released and available at
  * https://github.com/google-research/vision_transformer
  * https://github.com/google-research/big_vision

Acknowledgments:
  * The paper authors for releasing code and weights, thanks!
  * I fixed my class token impl based on Phil Wang's https://github.com/lucidrains/vit-pytorch
  * Simple transformer style inspired by Andrej Karpathy's https://github.com/karpathy/minGPT
  * Bert reference code checks against Huggingface Transformers and Tensorflow Bert

Hacked together by / Copyright 2020, Ross Wightman
"""
import logging
import math
from collections import OrderedDict
from functools import partial
from typing import Any, Callable, Dict, Optional, Set, Tuple, Type, Union, List
try:
    from typing import Literal
except ImportError:
    from typing_extensions import Literal

import torch
import torch.nn as nn
import torch.nn.functional as F
import torch.utils.checkpoint
from torch.jit import Final

from timm.data import IMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STD, IMAGENET_INCEPTION_MEAN, IMAGENET_INCEPTION_STD, \
    OPENAI_CLIP_MEAN, OPENAI_CLIP_STD
from timm.layers import PatchEmbed, Mlp, DropPath, AttentionPoolLatent, RmsNorm, PatchDropout, SwiGLUPacked, \
    trunc_normal_, lecun_normal_, resample_patch_embed, resample_abs_pos_embed, use_fused_attn, \
    get_act_layer, get_norm_layer, LayerType
from ._builder import build_model_with_cfg
from ._features import feature_take_indices
from ._manipulate import named_apply, checkpoint_seq, adapt_input_conv
from ._registry import generate_default_cfgs, register_model, register_model_deprecations

__all__ = ['VisionTransformer']  # model_registry will add each entrypoint fn to this


_logger = logging.getLogger(__name__)


class Attention(nn.Module):
    fused_attn: Final[bool]

    def __init__(
            self,
            dim: int,
            num_heads: int = 8,
            qkv_bias: bool = False,
            qk_norm: bool = False,
            attn_drop: float = 0.,
            proj_drop: float = 0.,
            norm_layer: nn.Module = nn.LayerNorm,
    ) -> None:
        super().__init__()
        assert dim % num_heads == 0, 'dim should be divisible by num_heads'
        self.num_heads = num_heads
        self.head_dim = dim // num_heads
        self.scale = self.head_dim ** -0.5
        self.fused_attn = use_fused_attn()

        self.qkv = nn.Linear(dim, dim * 3, bias=qkv_bias)
        self.q_norm = norm_layer(self.head_dim) if qk_norm else nn.Identity()
        self.k_norm = norm_layer(self.head_dim) if qk_norm else nn.Identity()
        self.attn_drop = nn.Dropout(attn_drop)
        self.proj = nn.Linear(dim, dim)
        self.proj_drop = nn.Dropout(proj_drop)

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        B, N, C = x.shape
        qkv = self.qkv(x).reshape(B, N, 3, self.num_heads, self.head_dim).permute(2, 0, 3, 1, 4)
        q, k, v = qkv.unbind(0)
        q, k = self.q_norm(q), self.k_norm(k)

        if self.fused_attn:
            x = F.scaled_dot_product_attention(
                q, k, v,
                dropout_p=self.attn_drop.p if self.training else 0.,
            )
        else:
            q = q * self.scale
            attn = q @ k.transpose(-2, -1)
            attn = attn.softmax(dim=-1)
            attn = self.attn_drop(attn)
            x = attn @ v

        x = x.transpose(1, 2).reshape(B, N, C)
        x = self.proj(x)
        x = self.proj_drop(x)
        return x


class LayerScale(nn.Module):
    def __init__(
            self,
            dim: int,
            init_values: float = 1e-5,
            inplace: bool = False,
    ) -> None:
        super().__init__()
        self.inplace = inplace
        self.gamma = nn.Parameter(init_values * torch.ones(dim))

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        return x.mul_(self.gamma) if self.inplace else x * self.gamma


class Block(nn.Module):
    def __init__(
            self,
            dim: int,
            num_heads: int,
            mlp_ratio: float = 4.,
            qkv_bias: bool = False,
            qk_norm: bool = False,
            proj_drop: float = 0.,
            attn_drop: float = 0.,
            init_values: Optional[float] = None,
            drop_path: float = 0.,
            act_layer: nn.Module = nn.GELU,
            norm_layer: nn.Module = nn.LayerNorm,
            mlp_layer: nn.Module = Mlp,
    ) -> None:
        super().__init__()
        self.norm1 = norm_layer(dim)
        self.attn = Attention(
            dim,
            num_heads=num_heads,
            qkv_bias=qkv_bias,
            qk_norm=qk_norm,
            attn_drop=attn_drop,
            proj_drop=proj_drop,
            norm_layer=norm_layer,
        )
        self.ls1 = LayerScale(dim, init_values=init_values) if init_values else nn.Identity()
        self.drop_path1 = DropPath(drop_path) if drop_path > 0. else nn.Identity()

        self.norm2 = norm_layer(dim)
        self.mlp = mlp_layer(
            in_features=dim,
            hidden_features=int(dim * mlp_ratio),
            act_layer=act_layer,
            drop=proj_drop,
        )
        self.ls2 = LayerScale(dim, init_values=init_values) if init_values else nn.Identity()
        self.drop_path2 = DropPath(drop_path) if drop_path > 0. else nn.Identity()

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        x = x + self.drop_path1(self.ls1(self.attn(self.norm1(x))))
        x = x + self.drop_path2(self.ls2(self.mlp(self.norm2(x))))
        return x


class ResPostBlock(nn.Module):
    def __init__(
            self,
            dim: int,
            num_heads: int,
            mlp_ratio: float = 4.,
            qkv_bias: bool = False,
            qk_norm: bool = False,
            proj_drop: float = 0.,
            attn_drop: float = 0.,
            init_values: Optional[float] = None,
            drop_path: float = 0.,
            act_layer: nn.Module = nn.GELU,
            norm_layer: nn.Module = nn.LayerNorm,
            mlp_layer: nn.Module = Mlp,
    ) -> None:
        super().__init__()
        self.init_values = init_values

        self.attn = Attention(
            dim,
            num_heads=num_heads,
            qkv_bias=qkv_bias,
            qk_norm=qk_norm,
            attn_drop=attn_drop,
            proj_drop=proj_drop,
            norm_layer=norm_layer,
        )
        self.norm1 = norm_layer(dim)
        self.drop_path1 = DropPath(drop_path) if drop_path > 0. else nn.Identity()

        self.mlp = mlp_layer(
            in_features=dim,
            hidden_features=int(dim * mlp_ratio),
            act_layer=act_layer,
            drop=proj_drop,
        )
        self.norm2 = norm_layer(dim)
        self.drop_path2 = DropPath(drop_path) if drop_path > 0. else nn.Identity()

        self.init_weights()

    def init_weights(self) -> None:
        # NOTE this init overrides that base model init with specific changes for the block type
        if self.init_values is not None:
            nn.init.constant_(self.norm1.weight, self.init_values)
            nn.init.constant_(self.norm2.weight, self.init_values)

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        x = x + self.drop_path1(self.norm1(self.attn(x)))
        x = x + self.drop_path2(self.norm2(self.mlp(x)))
        return x


class ParallelScalingBlock(nn.Module):
    """ Parallel ViT block (MLP & Attention in parallel)
    Based on:
      'Scaling Vision Transformers to 22 Billion Parameters` - https://arxiv.org/abs/2302.05442
    """
    fused_attn: Final[bool]

    def __init__(
            self,
            dim: int,
            num_heads: int,
            mlp_ratio: float = 4.,
            qkv_bias: bool = False,
            qk_norm: bool = False,
            proj_drop: float = 0.,
            attn_drop: float = 0.,
            init_values: Optional[float] = None,
            drop_path: float = 0.,
            act_layer: nn.Module = nn.GELU,
            norm_layer: nn.Module = nn.LayerNorm,
            mlp_layer: Optional[nn.Module] = None,
    ) -> None:
        super().__init__()
        assert dim % num_heads == 0, 'dim should be divisible by num_heads'
        self.num_heads = num_heads
        self.head_dim = dim // num_heads
        self.scale = self.head_dim ** -0.5
        self.fused_attn = use_fused_attn()
        mlp_hidden_dim = int(mlp_ratio * dim)
        in_proj_out_dim = mlp_hidden_dim + 3 * dim

        self.in_norm = norm_layer(dim)
        self.in_proj = nn.Linear(dim, in_proj_out_dim, bias=qkv_bias)
        self.in_split = [mlp_hidden_dim] + [dim] * 3
        if qkv_bias:
            self.register_buffer('qkv_bias', None)
            self.register_parameter('mlp_bias', None)
        else:
            self.register_buffer('qkv_bias', torch.zeros(3 * dim), persistent=False)
            self.mlp_bias = nn.Parameter(torch.zeros(mlp_hidden_dim))

        self.q_norm = norm_layer(self.head_dim) if qk_norm else nn.Identity()
        self.k_norm = norm_layer(self.head_dim) if qk_norm else nn.Identity()
        self.attn_drop = nn.Dropout(attn_drop)
        self.attn_out_proj = nn.Linear(dim, dim)

        self.mlp_drop = nn.Dropout(proj_drop)
        self.mlp_act = act_layer()
        self.mlp_out_proj = nn.Linear(mlp_hidden_dim, dim)

        self.ls = LayerScale(dim, init_values=init_values) if init_values is not None else nn.Identity()
        self.drop_path = DropPath(drop_path) if drop_path > 0. else nn.Identity()

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        B, N, C = x.shape

        # Combined MLP fc1 & qkv projections
        y = self.in_norm(x)
        if self.mlp_bias is not None:
            # Concat constant zero-bias for qkv w/ trainable mlp_bias.
            # Appears faster than adding to x_mlp separately
            y = F.linear(y, self.in_proj.weight, torch.cat((self.qkv_bias, self.mlp_bias)))
        else:
            y = self.in_proj(y)
        x_mlp, q, k, v = torch.split(y, self.in_split, dim=-1)

        # Dot product attention w/ qk norm
        q = self.q_norm(q.view(B, N, self.num_heads, self.head_dim)).transpose(1, 2)
        k = self.k_norm(k.view(B, N, self.num_heads, self.head_dim)).transpose(1, 2)
        v = v.view(B, N, self.num_heads, self.head_dim).transpose(1, 2)
        if self.fused_attn:
            x_attn = F.scaled_dot_product_attention(
                q, k, v,
                dropout_p=self.attn_drop.p if self.training else 0.,
            )
        else:
            q = q * self.scale
            attn = q @ k.transpose(-2, -1)
            attn = attn.softmax(dim=-1)
            attn = self.attn_drop(attn)
            x_attn = attn @ v
        x_attn = x_attn.transpose(1, 2).reshape(B, N, C)
        x_attn = self.attn_out_proj(x_attn)

        # MLP activation, dropout, fc2
        x_mlp = self.mlp_act(x_mlp)
        x_mlp = self.mlp_drop(x_mlp)
        x_mlp = self.mlp_out_proj(x_mlp)

        # Add residual w/ drop path & layer scale applied
        y = self.drop_path(self.ls(x_attn + x_mlp))
        x = x + y
        return x


class ParallelThingsBlock(nn.Module):
    """ Parallel ViT block (N parallel attention followed by N parallel MLP)
    Based on:
      `Three things everyone should know about Vision Transformers` - https://arxiv.org/abs/2203.09795
    """
    def __init__(
            self,
            dim: int,
            num_heads: int,
            num_parallel: int = 2,
            mlp_ratio: float = 4.,
            qkv_bias: bool = False,
            qk_norm: bool = False,
            init_values: Optional[float] = None,
            proj_drop: float = 0.,
            attn_drop: float = 0.,
            drop_path: float = 0.,
            act_layer: nn.Module = nn.GELU,
            norm_layer: nn.Module = nn.LayerNorm,
            mlp_layer: nn.Module = Mlp,
    ) -> None:
        super().__init__()
        self.num_parallel = num_parallel
        self.attns = nn.ModuleList()
        self.ffns = nn.ModuleList()
        for _ in range(num_parallel):
            self.attns.append(nn.Sequential(OrderedDict([
                ('norm', norm_layer(dim)),
                ('attn', Attention(
                    dim,
                    num_heads=num_heads,
                    qkv_bias=qkv_bias,
                    qk_norm=qk_norm,
                    attn_drop=attn_drop,
                    proj_drop=proj_drop,
                    norm_layer=norm_layer,
                )),
                ('ls', LayerScale(dim, init_values=init_values) if init_values else nn.Identity()),
                ('drop_path', DropPath(drop_path) if drop_path > 0. else nn.Identity())
            ])))
            self.ffns.append(nn.Sequential(OrderedDict([
                ('norm', norm_layer(dim)),
                ('mlp', mlp_layer(
                    dim,
                    hidden_features=int(dim * mlp_ratio),
                    act_layer=act_layer,
                    drop=proj_drop,
                )),
                ('ls', LayerScale(dim, init_values=init_values) if init_values else nn.Identity()),
                ('drop_path', DropPath(drop_path) if drop_path > 0. else nn.Identity())
            ])))

    def _forward_jit(self, x: torch.Tensor) -> torch.Tensor:
        x = x + torch.stack([attn(x) for attn in self.attns]).sum(dim=0)
        x = x + torch.stack([ffn(x) for ffn in self.ffns]).sum(dim=0)
        return x

    @torch.jit.ignore
    def _forward(self, x: torch.Tensor) -> torch.Tensor:
        x = x + sum(attn(x) for attn in self.attns)
        x = x + sum(ffn(x) for ffn in self.ffns)
        return x

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        if torch.jit.is_scripting() or torch.jit.is_tracing():
            return self._forward_jit(x)
        else:
            return self._forward(x)


def global_pool_nlc(
        x: torch.Tensor,
        pool_type: str = 'token',
        num_prefix_tokens: int = 1,
        reduce_include_prefix: bool = False,
):
    if not pool_type:
        return x

    if pool_type == 'token':
        x = x[:, 0]  # class token
    else:
        x = x if reduce_include_prefix else x[:, num_prefix_tokens:]
        if pool_type == 'avg':
            x = x.mean(dim=1)
        elif pool_type == 'avgmax':
            x = 0.5 * (x.amax(dim=1) + x.mean(dim=1))
        elif pool_type == 'max':
            x = x.amax(dim=1)
        else:
            assert not pool_type, f'Unknown pool type {pool_type}'

    return x


class VisionTransformer(nn.Module):
    """ Vision Transformer

    A PyTorch impl of : `An Image is Worth 16x16 Words: Transformers for Image Recognition at Scale`
        - https://arxiv.org/abs/2010.11929
    """
    dynamic_img_size: Final[bool]

    def __init__(
            self,
            img_size: Union[int, Tuple[int, int]] = 224,
            patch_size: Union[int, Tuple[int, int]] = 16,
            in_chans: int = 3,
            num_classes: int = 1000,
            global_pool: Literal['', 'avg', 'avgmax', 'max', 'token', 'map'] = 'token',
            embed_dim: int = 768,
            depth: int = 12,
            num_heads: int = 12,
            mlp_ratio: float = 4.,
            qkv_bias: bool = True,
            qk_norm: bool = False,
            init_values: Optional[float] = None,
            class_token: bool = True,
            pos_embed: str = 'learn',
            no_embed_class: bool = False,
            reg_tokens: int = 0,
            pre_norm: bool = False,
            fc_norm: Optional[bool] = None,
            dynamic_img_size: bool = False,
            dynamic_img_pad: bool = False,
            drop_rate: float = 0.,
            pos_drop_rate: float = 0.,
            patch_drop_rate: float = 0.,
            proj_drop_rate: float = 0.,
            attn_drop_rate: float = 0.,
            drop_path_rate: float = 0.,
            weight_init: Literal['skip', 'jax', 'jax_nlhb', 'moco', ''] = '',
            fix_init: bool = False,
            embed_layer: Callable = PatchEmbed,
            norm_layer: Optional[LayerType] = None,
            act_layer: Optional[LayerType] = None,
            block_fn: Type[nn.Module] = Block,
            mlp_layer: Type[nn.Module] = Mlp,
    ) -> None:
        """
        Args:
            img_size: Input image size.
            patch_size: Patch size.
            in_chans: Number of image input channels.
            num_classes: Number of classes for classification head.
            global_pool: Type of global pooling for final sequence (default: 'token').
            embed_dim: Transformer embedding dimension.
            depth: Depth of transformer.
            num_heads: Number of attention heads.
            mlp_ratio: Ratio of mlp hidden dim to embedding dim.
            qkv_bias: Enable bias for qkv projections if True.
            init_values: Layer-scale init values (layer-scale enabled if not None).
            class_token: Use class token.
            no_embed_class: Don't include position embeddings for class (or reg) tokens.
            reg_tokens: Number of register tokens.
            fc_norm: Pre head norm after pool (instead of before), if None, enabled when global_pool == 'avg'.
            drop_rate: Head dropout rate.
            pos_drop_rate: Position embedding dropout rate.
            attn_drop_rate: Attention dropout rate.
            drop_path_rate: Stochastic depth rate.
            weight_init: Weight initialization scheme.
            fix_init: Apply weight initialization fix (scaling w/ layer index).
            embed_layer: Patch embedding layer.
            norm_layer: Normalization layer.
            act_layer: MLP activation layer.
            block_fn: Transformer block layer.
        """
        super().__init__()
        assert global_pool in ('', 'avg', 'avgmax', 'max', 'token', 'map')
        assert class_token or global_pool != 'token'
        assert pos_embed in ('', 'none', 'learn')
        use_fc_norm = global_pool in ('avg', 'avgmax', 'max') if fc_norm is None else fc_norm
        norm_layer = get_norm_layer(norm_layer) or partial(nn.LayerNorm, eps=1e-6)
        act_layer = get_act_layer(act_layer) or nn.GELU

        self.num_classes = num_classes
        self.global_pool = global_pool
        self.num_features = self.head_hidden_size = self.embed_dim = embed_dim  # for consistency with other models
        self.num_prefix_tokens = 1 if class_token else 0
        self.num_prefix_tokens += reg_tokens
        self.num_reg_tokens = reg_tokens
        self.has_class_token = class_token
        self.no_embed_class = no_embed_class  # don't embed prefix positions (includes reg)
        self.dynamic_img_size = dynamic_img_size
        self.grad_checkpointing = False

        embed_args = {}
        if dynamic_img_size:
            # flatten deferred until after pos embed
            embed_args.update(dict(strict_img_size=False, output_fmt='NHWC'))
        self.patch_embed = embed_layer(
            img_size=img_size,
            patch_size=patch_size,
            in_chans=in_chans,
            embed_dim=embed_dim,
            bias=not pre_norm,  # disable bias if pre-norm is used (e.g. CLIP)
            dynamic_img_pad=dynamic_img_pad,
            **embed_args,
        )
        num_patches = self.patch_embed.num_patches
        reduction = self.patch_embed.feat_ratio() if hasattr(self.patch_embed, 'feat_ratio') else patch_size

        self.cls_token = nn.Parameter(torch.zeros(1, 1, embed_dim)) if class_token else None
        self.reg_token = nn.Parameter(torch.zeros(1, reg_tokens, embed_dim)) if reg_tokens else None
        embed_len = num_patches if no_embed_class else num_patches + self.num_prefix_tokens
        if not pos_embed or pos_embed == 'none':
            self.pos_embed = None
        else:
            self.pos_embed = nn.Parameter(torch.randn(1, embed_len, embed_dim) * .02)
        self.pos_drop = nn.Dropout(p=pos_drop_rate)
        if patch_drop_rate > 0:
            self.patch_drop = PatchDropout(
                patch_drop_rate,
                num_prefix_tokens=self.num_prefix_tokens,
            )
        else:
            self.patch_drop = nn.Identity()
        self.norm_pre = norm_layer(embed_dim) if pre_norm else nn.Identity()

        dpr = [x.item() for x in torch.linspace(0, drop_path_rate, depth)]  # stochastic depth decay rule
        self.blocks = nn.Sequential(*[
            block_fn(
                dim=embed_dim,
                num_heads=num_heads,
                mlp_ratio=mlp_ratio,
                qkv_bias=qkv_bias,
                qk_norm=qk_norm,
                init_values=init_values,
                proj_drop=proj_drop_rate,
                attn_drop=attn_drop_rate,
                drop_path=dpr[i],
                norm_layer=norm_layer,
                act_layer=act_layer,
                mlp_layer=mlp_layer,
            )
            for i in range(depth)])
        self.feature_info = [
            dict(module=f'blocks.{i}', num_chs=embed_dim, reduction=reduction) for i in range(depth)]
        self.norm = norm_layer(embed_dim) if not use_fc_norm else nn.Identity()

        # Classifier Head
        if global_pool == 'map':
            self.attn_pool = AttentionPoolLatent(
                self.embed_dim,
                num_heads=num_heads,
                mlp_ratio=mlp_ratio,
                norm_layer=norm_layer,
            )
        else:
            self.attn_pool = None
        self.fc_norm = norm_layer(embed_dim) if use_fc_norm else nn.Identity()
        self.head_drop = nn.Dropout(drop_rate)
        self.head = nn.Linear(self.embed_dim, num_classes) if num_classes > 0 else nn.Identity()

        if weight_init != 'skip':
            self.init_weights(weight_init)
        if fix_init:
            self.fix_init_weight()

    def fix_init_weight(self):
        def rescale(param, _layer_id):
            param.div_(math.sqrt(2.0 * _layer_id))

        for layer_id, layer in enumerate(self.blocks):
            rescale(layer.attn.proj.weight.data, layer_id + 1)
            rescale(layer.mlp.fc2.weight.data, layer_id + 1)

    def init_weights(self, mode: str = '') -> None:
        assert mode in ('jax', 'jax_nlhb', 'moco', '')
        head_bias = -math.log(self.num_classes) if 'nlhb' in mode else 0.
        if self.pos_embed is not None:
            trunc_normal_(self.pos_embed, std=.02)
        if self.cls_token is not None:
            nn.init.normal_(self.cls_token, std=1e-6)
        named_apply(get_init_weights_vit(mode, head_bias), self)

    def _init_weights(self, m: nn.Module) -> None:
        # this fn left here for compat with downstream users
        init_weights_vit_timm(m)

    @torch.jit.ignore()
    def load_pretrained(self, checkpoint_path: str, prefix: str = '') -> None:
        _load_weights(self, checkpoint_path, prefix)

    @torch.jit.ignore
    def no_weight_decay(self) -> Set:
        return {'pos_embed', 'cls_token', 'dist_token'}

    @torch.jit.ignore
    def group_matcher(self, coarse: bool = False) -> Dict:
        return dict(
            stem=r'^cls_token|pos_embed|patch_embed',  # stem and embed
            blocks=[(r'^blocks\.(\d+)', None), (r'^norm', (99999,))]
        )

    @torch.jit.ignore
    def set_grad_checkpointing(self, enable: bool = True) -> None:
        self.grad_checkpointing = enable
        if hasattr(self.patch_embed, 'set_grad_checkpointing'):
            self.patch_embed.set_grad_checkpointing(enable)

    @torch.jit.ignore
    def get_classifier(self) -> nn.Module:
        return self.head

    def reset_classifier(self, num_classes: int, global_pool: Optional[str] = None):
        self.num_classes = num_classes
        if global_pool is not None:
            assert global_pool in ('', 'avg', 'avgmax', 'max', 'token', 'map')
            if global_pool == 'map' and self.attn_pool is None:
                assert False, "Cannot currently add attention pooling in reset_classifier()."
            elif global_pool != 'map ' and self.attn_pool is not None:
                self.attn_pool = None  # remove attention pooling
            self.global_pool = global_pool
        self.head = nn.Linear(self.embed_dim, num_classes) if num_classes > 0 else nn.Identity()

    def _pos_embed(self, x: torch.Tensor) -> torch.Tensor:
        if self.pos_embed is None:
            return x.view(x.shape[0], -1, x.shape[-1])

        if self.dynamic_img_size:
            B, H, W, C = x.shape
            pos_embed = resample_abs_pos_embed(
                self.pos_embed,
                (H, W),
                num_prefix_tokens=0 if self.no_embed_class else self.num_prefix_tokens,
            )
            x = x.view(B, -1, C)
        else:
            pos_embed = self.pos_embed

        to_cat = []
        if self.cls_token is not None:
            to_cat.append(self.cls_token.expand(x.shape[0], -1, -1))
        if self.reg_token is not None:
            to_cat.append(self.reg_token.expand(x.shape[0], -1, -1))

        if self.no_embed_class:
            # deit-3, updated JAX (big vision)
            # position embedding does not overlap with class token, add then concat
            x = x + pos_embed
            if to_cat:
                x = torch.cat(to_cat + [x], dim=1)
        else:
            # original timm, JAX, and deit vit impl
            # pos_embed has entry for class token, concat then add
            if to_cat:
                x = torch.cat(to_cat + [x], dim=1)
            x = x + pos_embed

        return self.pos_drop(x)

    def forward_intermediates(
            self,
            x: torch.Tensor,
            indices: Optional[Union[int, List[int], Tuple[int]]] = None,
            return_prefix_tokens: bool = False,
            norm: bool = False,
            stop_early: bool = False,
            output_fmt: str = 'NCHW',
            intermediates_only: bool = False,
    ) -> Union[List[torch.Tensor], Tuple[torch.Tensor, List[torch.Tensor]]]:
        """ Forward features that returns intermediates.

        Args:
            x: Input image tensor
            indices: Take last n blocks if int, all if None, select matching indices if sequence
            return_prefix_tokens: Return both prefix and spatial intermediate tokens
            norm: Apply norm layer to all intermediates
            stop_early: Stop iterating over blocks when last desired intermediate hit
            output_fmt: Shape of intermediate feature outputs
            intermediates_only: Only return intermediate features
        Returns:

        """
        assert output_fmt in ('NCHW', 'NLC'), 'Output format must be one of NCHW or NLC.'
        reshape = output_fmt == 'NCHW'
        intermediates = []
        take_indices, max_index = feature_take_indices(len(self.blocks), indices)

        # forward pass
        B, _, height, width = x.shape
        x = self.patch_embed(x)
        x = self._pos_embed(x)
        x = self.patch_drop(x)
        x = self.norm_pre(x)

        if torch.jit.is_scripting() or not stop_early:  # can't slice blocks in torchscript
            blocks = self.blocks
        else:
            blocks = self.blocks[:max_index + 1]
        for i, blk in enumerate(blocks):
            x = blk(x)
            if i in take_indices:
                # normalize intermediates with final norm layer if enabled
                intermediates.append(self.norm(x) if norm else x)

        # process intermediates
        if self.num_prefix_tokens:
            # split prefix (e.g. class, distill) and spatial feature tokens
            prefix_tokens = [y[:, 0:self.num_prefix_tokens] for y in intermediates]
            intermediates = [y[:, self.num_prefix_tokens:] for y in intermediates]
        if reshape:
            # reshape to BCHW output format
            H, W = self.patch_embed.dynamic_feat_size((height, width))
            intermediates = [y.reshape(B, H, W, -1).permute(0, 3, 1, 2).contiguous() for y in intermediates]
        if not torch.jit.is_scripting() and return_prefix_tokens:
            # return_prefix not support in torchscript due to poor type handling
            intermediates = list(zip(intermediates, prefix_tokens))

        if intermediates_only:
            return intermediates

        x = self.norm(x)

        return x, intermediates

    def prune_intermediate_layers(
            self,
            indices: Union[int, List[int], Tuple[int]] = 1,
            prune_norm: bool = False,
            prune_head: bool = True,
    ):
        """ Prune layers not required for specified intermediates.
        """
        take_indices, max_index = feature_take_indices(len(self.blocks), indices)
        self.blocks = self.blocks[:max_index + 1]  # truncate blocks
        if prune_norm:
            self.norm = nn.Identity()
        if prune_head:
            self.fc_norm = nn.Identity()
            self.reset_classifier(0, '')
        return take_indices

    def get_intermediate_layers(
            self,
            x: torch.Tensor,
            n: Union[int, List[int], Tuple[int]] = 1,
            reshape: bool = False,
            return_prefix_tokens: bool = False,
            norm: bool = False,
    ) -> List[torch.Tensor]:
        """ Intermediate layer accessor inspired by DINO / DINOv2 interface.
        NOTE: This API is for backwards compat, favour using forward_intermediates() directly.
        """
        return self.forward_intermediates(
            x, n,
            return_prefix_tokens=return_prefix_tokens,
            norm=norm,
            output_fmt='NCHW' if reshape else 'NLC',
            intermediates_only=True,
        )

    def forward_features(self, x: torch.Tensor) -> torch.Tensor:
        x = self.patch_embed(x)
        x = self._pos_embed(x)
        x = self.patch_drop(x)
        x = self.norm_pre(x)
        if self.grad_checkpointing and not torch.jit.is_scripting():
            x = checkpoint_seq(self.blocks, x)
        else:
            x = self.blocks(x)
        x = self.norm(x)
        return x

    def pool(self, x: torch.Tensor, pool_type: Optional[str] = None) -> torch.Tensor:
        if self.attn_pool is not None:
            x = self.attn_pool(x)
            return x
        pool_type = self.global_pool if pool_type is None else pool_type
        x = global_pool_nlc(x, pool_type=pool_type, num_prefix_tokens=self.num_prefix_tokens)
        return x

    def forward_head(self, x: torch.Tensor, pre_logits: bool = False) -> torch.Tensor:
        x = self.pool(x)
        x = self.fc_norm(x)
        x = self.head_drop(x)
        return x if pre_logits else self.head(x)

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        x = self.forward_features(x)
        x = self.forward_head(x)
        return x


def init_weights_vit_timm(module: nn.Module, name: str = '') -> None:
    """ ViT weight initialization, original timm impl (for reproducibility) """
    if isinstance(module, nn.Linear):
        trunc_normal_(module.weight, std=.02)
        if module.bias is not None:
            nn.init.zeros_(module.bias)
    elif hasattr(module, 'init_weights'):
        module.init_weights()


def init_weights_vit_jax(module: nn.Module, name: str = '', head_bias: float = 0.0) -> None:
    """ ViT weight initialization, matching JAX (Flax) impl """
    if isinstance(module, nn.Linear):
        if name.startswith('head'):
            nn.init.zeros_(module.weight)
            nn.init.constant_(module.bias, head_bias)
        else:
            nn.init.xavier_uniform_(module.weight)
            if module.bias is not None:
                nn.init.normal_(module.bias, std=1e-6) if 'mlp' in name else nn.init.zeros_(module.bias)
    elif isinstance(module, nn.Conv2d):
        lecun_normal_(module.weight)
        if module.bias is not None:
            nn.init.zeros_(module.bias)
    elif hasattr(module, 'init_weights'):
        module.init_weights()


def init_weights_vit_moco(module: nn.Module, name: str = '') -> None:
    """ ViT weight initialization, matching moco-v3 impl minus fixed PatchEmbed """
    if isinstance(module, nn.Linear):
        if 'qkv' in name:
            # treat the weights of Q, K, V separately
            val = math.sqrt(6. / float(module.weight.shape[0] // 3 + module.weight.shape[1]))
            nn.init.uniform_(module.weight, -val, val)
        else:
            nn.init.xavier_uniform_(module.weight)
        if module.bias is not None:
            nn.init.zeros_(module.bias)
    elif hasattr(module, 'init_weights'):
        module.init_weights()


def get_init_weights_vit(mode: str = 'jax', head_bias: float = 0.0) -> Callable:
    if 'jax' in mode:
        return partial(init_weights_vit_jax, head_bias=head_bias)
    elif 'moco' in mode:
        return init_weights_vit_moco
    else:
        return init_weights_vit_timm


def resize_pos_embed(
        posemb: torch.Tensor,
        posemb_new: torch.Tensor,
        num_prefix_tokens: int = 1,
        gs_new: Tuple[int, int] = (),
        interpolation: str = 'bicubic',
        antialias: bool = False,
) -> torch.Tensor:
    """ Rescale the grid of position embeddings when loading from state_dict.
    *DEPRECATED* This function is being deprecated in favour of using resample_abs_pos_embed
    """
    ntok_new = posemb_new.shape[1] - num_prefix_tokens
    ntok_old = posemb.shape[1] - num_prefix_tokens
    gs_old = [int(math.sqrt(ntok_old))] * 2
    if not len(gs_new):  # backwards compatibility
        gs_new = [int(math.sqrt(ntok_new))] * 2
    return resample_abs_pos_embed(
        posemb, gs_new, gs_old,
        num_prefix_tokens=num_prefix_tokens,
        interpolation=interpolation,
        antialias=antialias,
        verbose=True,
    )


@torch.no_grad()
def _load_weights(model: VisionTransformer, checkpoint_path: str, prefix: str = '') -> None:
    """ Load weights from .npz checkpoints for official Google Brain Flax implementation
    """
    import numpy as np

    def _n2p(w, t=True, idx=None):
        if idx is not None:
            w = w[idx]
        if w.ndim == 4 and w.shape[0] == w.shape[1] == w.shape[2] == 1:
            w = w.flatten()
        if t:
            if w.ndim == 4:
                w = w.transpose([3, 2, 0, 1])
            elif w.ndim == 3:
                w = w.transpose([2, 0, 1])
            elif w.ndim == 2:
                w = w.transpose([1, 0])
        return torch.from_numpy(w)

    w = np.load(checkpoint_path)
    interpolation = 'bilinear'
    antialias = False
    big_vision = False
    if not prefix:
        if 'opt/target/embedding/kernel' in w:
            prefix = 'opt/target/'
        elif 'params/embedding/kernel' in w:
            prefix = 'params/'
            big_vision = True
        elif 'params/img/embedding/kernel' in w:
            prefix = 'params/img/'
            big_vision = True

    if hasattr(model.patch_embed, 'backbone'):
        # hybrid
        backbone = model.patch_embed.backbone
        stem_only = not hasattr(backbone, 'stem')
        stem = backbone if stem_only else backbone.stem
        stem.conv.weight.copy_(adapt_input_conv(stem.conv.weight.shape[1], _n2p(w[f'{prefix}conv_root/kernel'])))
        stem.norm.weight.copy_(_n2p(w[f'{prefix}gn_root/scale']))
        stem.norm.bias.copy_(_n2p(w[f'{prefix}gn_root/bias']))
        if not stem_only:
            for i, stage in enumerate(backbone.stages):
                for j, block in enumerate(stage.blocks):
                    bp = f'{prefix}block{i + 1}/unit{j + 1}/'
                    for r in range(3):
                        getattr(block, f'conv{r + 1}').weight.copy_(_n2p(w[f'{bp}conv{r + 1}/kernel']))
                        getattr(block, f'norm{r + 1}').weight.copy_(_n2p(w[f'{bp}gn{r + 1}/scale']))
                        getattr(block, f'norm{r + 1}').bias.copy_(_n2p(w[f'{bp}gn{r + 1}/bias']))
                    if block.downsample is not None:
                        block.downsample.conv.weight.copy_(_n2p(w[f'{bp}conv_proj/kernel']))
                        block.downsample.norm.weight.copy_(_n2p(w[f'{bp}gn_proj/scale']))
                        block.downsample.norm.bias.copy_(_n2p(w[f'{bp}gn_proj/bias']))
        embed_conv_w = _n2p(w[f'{prefix}embedding/kernel'])
    else:
        embed_conv_w = adapt_input_conv(
            model.patch_embed.proj.weight.shape[1], _n2p(w[f'{prefix}embedding/kernel']))
    if embed_conv_w.shape[-2:] != model.patch_embed.proj.weight.shape[-2:]:
        embed_conv_w = resample_patch_embed(
            embed_conv_w,
            model.patch_embed.proj.weight.shape[-2:],
            interpolation=interpolation,
            antialias=antialias,
            verbose=True,
        )

    model.patch_embed.proj.weight.copy_(embed_conv_w)
    model.patch_embed.proj.bias.copy_(_n2p(w[f'{prefix}embedding/bias']))
    if model.cls_token is not None:
        model.cls_token.copy_(_n2p(w[f'{prefix}cls'], t=False))
    if big_vision:
        pos_embed_w = _n2p(w[f'{prefix}pos_embedding'], t=False)
    else:
        pos_embed_w = _n2p(w[f'{prefix}Transformer/posembed_input/pos_embedding'], t=False)
    if pos_embed_w.shape != model.pos_embed.shape:
        old_shape = pos_embed_w.shape
        num_prefix_tokens = 0 if getattr(model, 'no_embed_class', False) else getattr(model, 'num_prefix_tokens', 1)
        pos_embed_w = resample_abs_pos_embed(  # resize pos embedding when different size from pretrained weights
            pos_embed_w,
            new_size=model.patch_embed.grid_size,
            num_prefix_tokens=num_prefix_tokens,
            interpolation=interpolation,
            antialias=antialias,
            verbose=True,
        )
    model.pos_embed.copy_(pos_embed_w)
    model.norm.weight.copy_(_n2p(w[f'{prefix}Transformer/encoder_norm/scale']))
    model.norm.bias.copy_(_n2p(w[f'{prefix}Transformer/encoder_norm/bias']))
    if (isinstance(model.head, nn.Linear) and
            f'{prefix}head/bias' in w and
            model.head.bias.shape[0] == w[f'{prefix}head/bias'].shape[-1]):
        model.head.weight.copy_(_n2p(w[f'{prefix}head/kernel']))
        model.head.bias.copy_(_n2p(w[f'{prefix}head/bias']))
    # NOTE representation layer has been removed, not used in latest 21k/1k pretrained weights
    # if isinstance(getattr(model.pre_logits, 'fc', None), nn.Linear) and f'{prefix}pre_logits/bias' in w:
    #     model.pre_logits.fc.weight.copy_(_n2p(w[f'{prefix}pre_logits/kernel']))
    #     model.pre_logits.fc.bias.copy_(_n2p(w[f'{prefix}pre_logits/bias']))
    if model.attn_pool is not None:
        block_prefix = f'{prefix}MAPHead_0/'
        mha_prefix = block_prefix + f'MultiHeadDotProductAttention_0/'
        model.attn_pool.latent.copy_(_n2p(w[f'{block_prefix}probe'], t=False))
        model.attn_pool.kv.weight.copy_(torch.cat([
            _n2p(w[f'{mha_prefix}{n}/kernel'], t=False).flatten(1).T for n in ('key', 'value')]))
        model.attn_pool.kv.bias.copy_(torch.cat([
            _n2p(w[f'{mha_prefix}{n}/bias'], t=False).reshape(-1) for n in ('key', 'value')]))
        model.attn_pool.q.weight.copy_(_n2p(w[f'{mha_prefix}query/kernel'], t=False).flatten(1).T)
        model.attn_pool.q.bias.copy_(_n2p(w[f'{mha_prefix}query/bias'], t=False).reshape(-1))
        model.attn_pool.proj.weight.copy_(_n2p(w[f'{mha_prefix}out/kernel']).flatten(1))
        model.attn_pool.proj.bias.copy_(_n2p(w[f'{mha_prefix}out/bias']))
        model.attn_pool.norm.weight.copy_(_n2p(w[f'{block_prefix}LayerNorm_0/scale']))
        model.attn_pool.norm.bias.copy_(_n2p(w[f'{block_prefix}LayerNorm_0/bias']))
        for r in range(2):
            getattr(model.attn_pool.mlp, f'fc{r + 1}').weight.copy_(_n2p(w[f'{block_prefix}MlpBlock_0/Dense_{r}/kernel']))
            getattr(model.attn_pool.mlp, f'fc{r + 1}').bias.copy_(_n2p(w[f'{block_prefix}MlpBlock_0/Dense_{r}/bias']))

    mha_sub, b_sub, ln1_sub = (0, 0, 1) if big_vision else (1, 3, 2)
    for i, block in enumerate(model.blocks.children()):
        if f'{prefix}Transformer/encoderblock/LayerNorm_0/scale' in w:
            block_prefix = f'{prefix}Transformer/encoderblock/'
            idx = i
        else:
            block_prefix = f'{prefix}Transformer/encoderblock_{i}/'
            idx = None
        mha_prefix = block_prefix + f'MultiHeadDotProductAttention_{mha_sub}/'
        block.norm1.weight.copy_(_n2p(w[f'{block_prefix}LayerNorm_0/scale'], idx=idx))
        block.norm1.bias.copy_(_n2p(w[f'{block_prefix}LayerNorm_0/bias'], idx=idx))
        block.attn.qkv.weight.copy_(torch.cat([
            _n2p(w[f'{mha_prefix}{n}/kernel'], t=False, idx=idx).flatten(1).T for n in ('query', 'key', 'value')]))
        block.attn.qkv.bias.copy_(torch.cat([
            _n2p(w[f'{mha_prefix}{n}/bias'], t=False, idx=idx).reshape(-1) for n in ('query', 'key', 'value')]))
        block.attn.proj.weight.copy_(_n2p(w[f'{mha_prefix}out/kernel'], idx=idx).flatten(1))
        block.attn.proj.bias.copy_(_n2p(w[f'{mha_prefix}out/bias'], idx=idx))
        block.norm2.weight.copy_(_n2p(w[f'{block_prefix}LayerNorm_{ln1_sub}/scale'], idx=idx))
        block.norm2.bias.copy_(_n2p(w[f'{block_prefix}LayerNorm_{ln1_sub}/bias'], idx=idx))
        for r in range(2):
            getattr(block.mlp, f'fc{r + 1}').weight.copy_(
                _n2p(w[f'{block_prefix}MlpBlock_{b_sub}/Dense_{r}/kernel'], idx=idx))
            getattr(block.mlp, f'fc{r + 1}').bias.copy_(
                _n2p(w[f'{block_prefix}MlpBlock_{b_sub}/Dense_{r}/bias'], idx=idx))


def _convert_openai_clip(
        state_dict: Dict[str, torch.Tensor],
        model: VisionTransformer,
        prefix: str = 'visual.',
) -> Dict[str, torch.Tensor]:
    out_dict = {}
    swaps = [
        ('conv1', 'patch_embed.proj'),
        ('positional_embedding', 'pos_embed'),
        ('transformer.resblocks.', 'blocks.'),
        ('ln_pre', 'norm_pre'),
        ('ln_post', 'norm'),
        ('ln_', 'norm'),
        ('in_proj_', 'qkv.'),
        ('out_proj', 'proj'),
        ('mlp.c_fc', 'mlp.fc1'),
        ('mlp.c_proj', 'mlp.fc2'),
    ]
    for k, v in state_dict.items():
        if not k.startswith(prefix):
            continue
        k = k.replace(prefix, '')
        for sp in swaps:
            k = k.replace(sp[0], sp[1])

        if k == 'proj':
            k = 'head.weight'
            v = v.transpose(0, 1)
            out_dict['head.bias'] = torch.zeros(v.shape[0])
        elif k == 'class_embedding':
            k = 'cls_token'
            v = v.unsqueeze(0).unsqueeze(1)
        elif k == 'pos_embed':
            v = v.unsqueeze(0)
        out_dict[k] = v
    return out_dict


def _convert_dinov2(
        state_dict: Dict[str, torch.Tensor],
        model: VisionTransformer,
) -> Dict[str, torch.Tensor]:
    import re
    out_dict = {}
    state_dict.pop("mask_token", None)
    if 'register_tokens' in state_dict:
        # convert dinov2 w/ registers to no_embed_class timm model (neither cls or reg tokens overlap pos embed)
        out_dict['reg_token'] = state_dict.pop('register_tokens')
        out_dict['cls_token'] = state_dict.pop('cls_token') + state_dict['pos_embed'][:, 0]
        out_dict['pos_embed'] = state_dict.pop('pos_embed')[:, 1:]
    for k, v in state_dict.items():
        if re.match(r"blocks\.(\d+)\.mlp\.w12\.(?:weight|bias)", k):
            out_dict[k.replace("w12", "fc1")] = v
            continue
        elif re.match(r"blocks\.(\d+)\.mlp\.w3\.(?:weight|bias)", k):
            out_dict[k.replace("w3", "fc2")] = v
            continue
        out_dict[k] = v
    return out_dict


def checkpoint_filter_fn(
        state_dict: Dict[str, torch.Tensor],
        model: VisionTransformer,
        adapt_layer_scale: bool = False,
        interpolation: str = 'bicubic',
        antialias: bool = True,
) -> Dict[str, torch.Tensor]:
    """ convert patch embedding weight from manual patchify + linear proj to conv"""
    import re
    out_dict = {}
    state_dict = state_dict.get('model', state_dict)
    state_dict = state_dict.get('state_dict', state_dict)
    prefix = ''

    if 'visual.class_embedding' in state_dict:
        state_dict = _convert_openai_clip(state_dict, model)
    elif 'module.visual.class_embedding' in state_dict:
        state_dict = _convert_openai_clip(state_dict, model, prefix='module.visual.')
    elif "mask_token" in state_dict:
        state_dict = _convert_dinov2(state_dict, model)
    elif "encoder" in state_dict:
        # IJEPA, vit in an 'encoder' submodule
        state_dict = state_dict['encoder']
        prefix = 'module.'
    elif 'visual.trunk.pos_embed' in state_dict or 'visual.trunk.blocks.0.norm1.weight' in state_dict:
        # OpenCLIP model with timm vision encoder
        prefix = 'visual.trunk.'
        if 'visual.head.proj.weight' in state_dict and isinstance(model.head, nn.Linear):
            # remap final nn.Linear if it exists outside of the timm .trunk (ie in visual.head.proj)
            out_dict['head.weight'] = state_dict['visual.head.proj.weight']
            out_dict['head.bias'] = torch.zeros(state_dict['visual.head.proj.weight'].shape[0])

    if prefix:
        # filter on & remove prefix string from keys
        state_dict = {k[len(prefix):]: v for k, v in state_dict.items() if k.startswith(prefix)}

    for k, v in state_dict.items():
        if 'patch_embed.proj.weight' in k:
            O, I, H, W = model.patch_embed.proj.weight.shape
            if len(v.shape) < 4:
                # For old models that I trained prior to conv based patchification
                O, I, H, W = model.patch_embed.proj.weight.shape
                v = v.reshape(O, -1, H, W)
            if v.shape[-1] != W or v.shape[-2] != H:
                v = resample_patch_embed(
                    v,
                    (H, W),
                    interpolation=interpolation,
                    antialias=antialias,
                    verbose=True,
                )
        elif k == 'pos_embed' and v.shape[1] != model.pos_embed.shape[1]:
            # To resize pos embedding when using model at different size from pretrained weights
            num_prefix_tokens = 0 if getattr(model, 'no_embed_class', False) else getattr(model, 'num_prefix_tokens', 1)
            v = resample_abs_pos_embed(
                v,
                new_size=model.patch_embed.grid_size,
                num_prefix_tokens=num_prefix_tokens,
                interpolation=interpolation,
                antialias=antialias,
                verbose=True,
            )
        elif adapt_layer_scale and 'gamma_' in k:
            # remap layer-scale gamma into sub-module (deit3 models)
            k = re.sub(r'gamma_([0-9])', r'ls\1.gamma', k)
        elif 'pre_logits' in k:
            # NOTE representation layer removed as not used in latest 21k/1k pretrained weights
            continue
        out_dict[k] = v
    return out_dict


def _cfg(url: str = '', **kwargs) -> Dict[str, Any]:
    return {
        'url': url,
        'num_classes': 1000,
        'input_size': (3, 224, 224),
        'pool_size': None,
        'crop_pct': 0.9,
        'interpolation': 'bicubic',
        'fixed_input_size': True,
        'mean': IMAGENET_INCEPTION_MEAN,
        'std': IMAGENET_INCEPTION_STD,
        'first_conv': 'patch_embed.proj',
        'classifier': 'head',
        **kwargs,
    }

default_cfgs = {

    # re-finetuned augreg 21k FT on in1k weights
    'vit_base_patch16_224.augreg2_in21k_ft_in1k': _cfg(
        hf_hub_id='timm/'),
    'vit_base_patch16_384.augreg2_in21k_ft_in1k': _cfg(),
    'vit_base_patch8_224.augreg2_in21k_ft_in1k': _cfg(
        hf_hub_id='timm/'),

    # How to train your ViT (augreg) weights, pretrained on 21k FT on in1k
    'vit_tiny_patch16_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/Ti_16-i21k-300ep-lr_0.001-aug_none-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_tiny_patch16_384.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/Ti_16-i21k-300ep-lr_0.001-aug_none-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_small_patch32_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_32-i21k-300ep-lr_0.001-aug_light1-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_small_patch32_384.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_32-i21k-300ep-lr_0.001-aug_light1-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_small_patch16_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_16-i21k-300ep-lr_0.001-aug_light1-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_small_patch16_384.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_16-i21k-300ep-lr_0.001-aug_light1-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_base_patch32_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_32-i21k-300ep-lr_0.001-aug_medium1-wd_0.03-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_base_patch32_384.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_32-i21k-300ep-lr_0.001-aug_light1-wd_0.1-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.03-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_base_patch16_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_16-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.01-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_base_patch16_384.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_16-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.01-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_base_patch8_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_8-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.01-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_large_patch16_224.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/L_16-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.1-sd_0.1--imagenet2012-steps_20k-lr_0.01-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_large_patch16_384.augreg_in21k_ft_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/L_16-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.1-sd_0.1--imagenet2012-steps_20k-lr_0.01-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),

    # patch models (weights from official Google JAX impl) pretrained on in21k FT on in1k
    'vit_base_patch16_224.orig_in21k_ft_in1k': _cfg(
        url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_base_p16_224-80ecf9dd.pth',
        hf_hub_id='timm/'),
    'vit_base_patch16_384.orig_in21k_ft_in1k': _cfg(
        url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_base_p16_384-83fb41ba.pth',
        hf_hub_id='timm/',
        input_size=(3, 384, 384), crop_pct=1.0),
    'vit_large_patch32_384.orig_in21k_ft_in1k': _cfg(
        url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_large_p32_384-9b920ba8.pth',
        hf_hub_id='timm/',
        input_size=(3, 384, 384), crop_pct=1.0),

    # How to train your ViT (augreg) weights trained on in1k only
    'vit_small_patch16_224.augreg_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_16-i1k-300ep-lr_0.001-aug_medium2-wd_0.1-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.01-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_small_patch16_384.augreg_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_16-i1k-300ep-lr_0.001-aug_medium2-wd_0.1-do_0.0-sd_0.0--imagenet2012-steps_20k-lr_0.01-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_base_patch32_224.augreg_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_32-i1k-300ep-lr_0.001-aug_medium2-wd_0.1-do_0.1-sd_0.1--imagenet2012-steps_20k-lr_0.01-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_base_patch32_384.augreg_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_32-i1k-300ep-lr_0.001-aug_medium2-wd_0.1-do_0.1-sd_0.1--imagenet2012-steps_20k-lr_0.01-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),
    'vit_base_patch16_224.augreg_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_16-i1k-300ep-lr_0.001-aug_strong2-wd_0.1-do_0.1-sd_0.1--imagenet2012-steps_20k-lr_0.01-res_224.npz',
        hf_hub_id='timm/',
        custom_load=True),
    'vit_base_patch16_384.augreg_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_16-i1k-300ep-lr_0.001-aug_strong2-wd_0.1-do_0.1-sd_0.1--imagenet2012-steps_20k-lr_0.01-res_384.npz',
        hf_hub_id='timm/',
        custom_load=True, input_size=(3, 384, 384), crop_pct=1.0),

    'vit_large_patch14_224.untrained': _cfg(url=''),
    'vit_huge_patch14_224.untrained': _cfg(url=''),
    'vit_giant_patch14_224.untrained': _cfg(url=''),
    'vit_gigantic_patch14_224.untrained': _cfg(url=''),

    # patch models, imagenet21k (weights from official Google JAX impl), classifier not valid
    'vit_base_patch32_224.orig_in21k': _cfg(
        #url='https://github.com/huggingface/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_base_patch32_224_in21k-8db57226.pth',
        hf_hub_id='timm/',
        num_classes=0),
    'vit_base_patch16_224.orig_in21k': _cfg(
        #url='https://github.com/huggingface/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_base_patch16_224_in21k-e5005f0a.pth',
        hf_hub_id='timm/',
        num_classes=0),
    'vit_large_patch32_224.orig_in21k': _cfg(
        #url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_large_patch32_224_in21k-9046d2e7.pth',
        hf_hub_id='timm/',
        num_classes=0),
    'vit_large_patch16_224.orig_in21k': _cfg(
        #url='https://github.com/huggingface/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_large_patch16_224_in21k-606da67d.pth',
        hf_hub_id='timm/',
        num_classes=0),
    'vit_huge_patch14_224.orig_in21k': _cfg(
        hf_hub_id='timm/',
        num_classes=0),

    # How to train your ViT (augreg) weights, pretrained on in21k
    'vit_tiny_patch16_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/Ti_16-i21k-300ep-lr_0.001-aug_none-wd_0.03-do_0.0-sd_0.0.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),
    'vit_small_patch32_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_32-i21k-300ep-lr_0.001-aug_light1-wd_0.03-do_0.0-sd_0.0.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),
    'vit_small_patch16_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/S_16-i21k-300ep-lr_0.001-aug_light1-wd_0.03-do_0.0-sd_0.0.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),
    'vit_base_patch32_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_32-i21k-300ep-lr_0.001-aug_medium1-wd_0.03-do_0.0-sd_0.0.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),
    'vit_base_patch16_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_16-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.0-sd_0.0.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),
    'vit_base_patch8_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/B_8-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.0-sd_0.0.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),
    'vit_large_patch16_224.augreg_in21k': _cfg(
        url='https://storage.googleapis.com/vit_models/augreg/L_16-i21k-300ep-lr_0.001-aug_medium1-wd_0.1-do_0.1-sd_0.1.npz',
        hf_hub_id='timm/',
        custom_load=True, num_classes=21843),

    # SAM trained models (https://arxiv.org/abs/2106.01548)
    'vit_base_patch32_224.sam_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/sam/ViT-B_32.npz', custom_load=True,
        hf_hub_id='timm/'),
    'vit_base_patch16_224.sam_in1k': _cfg(
        url='https://storage.googleapis.com/vit_models/sam/ViT-B_16.npz', custom_load=True,
        hf_hub_id='timm/'),

    # DINO pretrained - https://arxiv.org/abs/2104.14294 (no classifier head, for fine-tune only)
    'vit_small_patch16_224.dino': _cfg(
        url='https://dl.fbaipublicfiles.com/dino/dino_deitsmall16_pretrain/dino_deitsmall16_pretrain.pth',
        hf_hub_id='timm/',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_small_patch8_224.dino': _cfg(
        url='https://dl.fbaipublicfiles.com/dino/dino_deitsmall8_pretrain/dino_deitsmall8_pretrain.pth',
        hf_hub_id='timm/',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_base_patch16_224.dino': _cfg(
        url='https://dl.fbaipublicfiles.com/dino/dino_vitbase16_pretrain/dino_vitbase16_pretrain.pth',
        hf_hub_id='timm/',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_base_patch8_224.dino': _cfg(
        url='https://dl.fbaipublicfiles.com/dino/dino_vitbase8_pretrain/dino_vitbase8_pretrain.pth',
        hf_hub_id='timm/',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),

    # DINOv2 pretrained - https://arxiv.org/abs/2304.07193 (no classifier head, for fine-tune/features only)
    'vit_small_patch14_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vits14/dinov2_vits14_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),
    'vit_base_patch14_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vitb14/dinov2_vitb14_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),
    'vit_large_patch14_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vitl14/dinov2_vitl14_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),
    'vit_giant_patch14_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vitg14/dinov2_vitg14_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),

    # DINOv2 pretrained w/ registers - https://arxiv.org/abs/2309.16588 (no classifier head, for fine-tune/features only)
    'vit_small_patch14_reg4_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vits14/dinov2_vits14_reg4_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),
    'vit_base_patch14_reg4_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vitb14/dinov2_vitb14_reg4_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),
    'vit_large_patch14_reg4_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vitl14/dinov2_vitl14_reg4_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),
    'vit_giant_patch14_reg4_dinov2.lvd142m': _cfg(
        url='https://dl.fbaipublicfiles.com/dinov2/dinov2_vitg14/dinov2_vitg14_reg4_pretrain.pth',
        hf_hub_id='timm/',
        license='apache-2.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0,
        input_size=(3, 518, 518), crop_pct=1.0),

    # ViT ImageNet-21K-P pretraining by MILL
    'vit_base_patch16_224_miil.in21k': _cfg(
        url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-tresnet/vit_base_patch16_224_in21k_miil-887286df.pth',
        hf_hub_id='timm/',
        mean=(0., 0., 0.), std=(1., 1., 1.), crop_pct=0.875, interpolation='bilinear', num_classes=11221),
    'vit_base_patch16_224_miil.in21k_ft_in1k': _cfg(
        url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-tresnet/vit_base_patch16_224_1k_miil_84_4-2deb18e3.pth',
        hf_hub_id='timm/',
        mean=(0., 0., 0.), std=(1., 1., 1.), crop_pct=0.875, interpolation='bilinear'),

    # Custom timm variants
    'vit_base_patch16_rpn_224.sw_in1k': _cfg(
        url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-tpu-weights/vit_base_patch16_rpn_224-sw-3b07e89d.pth',
        hf_hub_id='timm/'),
    'vit_medium_patch16_gap_240.sw_in12k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95, num_classes=11821),
    'vit_medium_patch16_gap_256.sw_in12k_ft_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_medium_patch16_gap_384.sw_in12k_ft_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 384, 384), crop_pct=0.95, crop_mode='squash'),
    'vit_base_patch16_gap_224': _cfg(),

    # CLIP pretrained image tower and related fine-tuned weights
    'vit_base_patch32_clip_224.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD),
    'vit_base_patch32_clip_384.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, input_size=(3, 384, 384)),
    'vit_base_patch32_clip_448.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, input_size=(3, 448, 448)),
    'vit_base_patch16_clip_224.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=0.95),
    'vit_base_patch16_clip_384.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 384, 384), crop_mode='squash'),
    'vit_large_patch14_clip_224.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD, crop_pct=1.0),
    'vit_large_patch14_clip_336.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
        crop_pct=1.0, input_size=(3, 336, 336), crop_mode='squash'),
    'vit_huge_patch14_clip_224.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0),
    'vit_huge_patch14_clip_336.laion2b_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 336, 336), crop_mode='squash'),

    'vit_base_patch32_clip_224.openai_ft_in12k_in1k': _cfg(
        # hf_hub_id='timm/vit_base_patch32_clip_224.openai_ft_in12k_in1k',  # FIXME weight exists, need to push
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD),
    'vit_base_patch32_clip_384.openai_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=0.95, input_size=(3, 384, 384), crop_mode='squash'),
    'vit_base_patch16_clip_224.openai_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=0.95),
    'vit_base_patch16_clip_384.openai_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=0.95, input_size=(3, 384, 384), crop_mode='squash'),
    'vit_large_patch14_clip_224.openai_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0),
    'vit_large_patch14_clip_336.openai_ft_in12k_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 336, 336), crop_mode='squash'),

    'vit_base_patch32_clip_224.laion2b_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD),
    'vit_base_patch16_clip_224.laion2b_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0),
    'vit_base_patch16_clip_384.laion2b_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 384, 384), crop_mode='squash'),
    'vit_large_patch14_clip_224.laion2b_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD, crop_pct=1.0),
    'vit_large_patch14_clip_336.laion2b_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
        crop_pct=1.0, input_size=(3, 336, 336), crop_mode='squash'),
    'vit_huge_patch14_clip_224.laion2b_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0),
    'vit_huge_patch14_clip_336.laion2b_ft_in1k': _cfg(
        hf_hub_id='',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 336, 336), crop_mode='squash'),

    'vit_base_patch32_clip_224.openai_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD),
    'vit_base_patch16_clip_224.openai_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD),
    'vit_base_patch16_clip_384.openai_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 384, 384), crop_mode='squash'),
    'vit_large_patch14_clip_224.openai_ft_in1k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0),

    'vit_base_patch32_clip_224.laion2b_ft_in12k': _cfg(
        #hf_hub_id='timm/vit_base_patch32_clip_224.laion2b_ft_in12k',  # FIXME weight exists, need to push
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=11821),
    'vit_base_patch16_clip_224.laion2b_ft_in12k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=11821),
    'vit_large_patch14_clip_224.laion2b_ft_in12k': _cfg(
        hf_hub_id='timm/',
        mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD, crop_pct=1.0, num_classes=11821),
    'vit_huge_patch14_clip_224.laion2b_ft_in12k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=11821),

    'vit_base_patch32_clip_224.openai_ft_in12k': _cfg(
        # hf_hub_id='timm/vit_base_patch32_clip_224.openai_ft_in12k',  # FIXME weight exists, need to push
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=11821),
    'vit_base_patch16_clip_224.openai_ft_in12k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=11821),
    'vit_large_patch14_clip_224.openai_ft_in12k': _cfg(
        hf_hub_id='timm/',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=11821),

    'vit_base_patch32_clip_224.laion2b': _cfg(
        hf_hub_id='laion/CLIP-ViT-B-32-laion2B-s34B-b79K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),
    'vit_base_patch16_clip_224.laion2b': _cfg(
        hf_hub_id='laion/CLIP-ViT-B-16-laion2B-s34B-b88K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=512),
    'vit_large_patch14_clip_224.laion2b': _cfg(
        hf_hub_id='laion/CLIP-ViT-L-14-laion2B-s32B-b82K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD, crop_pct=1.0, num_classes=768),
    'vit_huge_patch14_clip_224.laion2b': _cfg(
        hf_hub_id='laion/CLIP-ViT-H-14-laion2B-s32B-b79K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=1024),
    'vit_giant_patch14_clip_224.laion2b': _cfg(
        hf_hub_id='laion/CLIP-ViT-g-14-laion2B-s12B-b42K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=1024),
    'vit_gigantic_patch14_clip_224.laion2b': _cfg(
        hf_hub_id='laion/CLIP-ViT-bigG-14-laion2B-39B-b160k',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=1280),

    'vit_base_patch32_clip_224.datacompxl': _cfg(
        hf_hub_id='laion/CLIP-ViT-B-32-DataComp.XL-s13B-b90K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=512),
    'vit_base_patch32_clip_256.datacompxl': _cfg(
        hf_hub_id='laion/CLIP-ViT-B-32-256x256-DataComp-s34B-b86K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 256, 256), num_classes=512),
    'vit_base_patch16_clip_224.datacompxl': _cfg(
        hf_hub_id='laion/CLIP-ViT-B-16-DataComp.XL-s13B-b90K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=512),
    'vit_large_patch14_clip_224.datacompxl': _cfg(
        hf_hub_id='laion/CLIP-ViT-L-14-DataComp.XL-s13B-b90K',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=768),

    'vit_base_patch16_clip_224.dfn2b': _cfg(
        hf_hub_id='apple/DFN2B-CLIP-ViT-B-16',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=512),
    'vit_large_patch14_clip_224.dfn2b': _cfg(
        hf_hub_id='apple/DFN2B-CLIP-ViT-L-14',
        hf_hub_filename='open_clip_pytorch_model.bin',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=768),
    'vit_huge_patch14_clip_224.dfn5b': _cfg(
        hf_hub_id='apple/DFN5B-CLIP-ViT-H-14',
        hf_hub_filename='open_clip_pytorch_model.bin',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=1024),
    'vit_huge_patch14_clip_378.dfn5b': _cfg(
        hf_hub_id='apple/DFN5B-CLIP-ViT-H-14-378',
        hf_hub_filename='open_clip_pytorch_model.bin',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        crop_pct=1.0, input_size=(3, 378, 378), num_classes=1024),

    'vit_base_patch32_clip_224.metaclip_2pt5b': _cfg(
        hf_hub_id='facebook/metaclip-b32-fullcc2.5b',
        hf_hub_filename='metaclip_b32_fullcc2.5b.bin',
        license='cc-by-nc-4.0',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=512),
    'vit_base_patch16_clip_224.metaclip_2pt5b': _cfg(
        hf_hub_id='facebook/metaclip-b16-fullcc2.5b',
        hf_hub_filename='metaclip_b16_fullcc2.5b.bin',
        license='cc-by-nc-4.0',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=512),
    'vit_large_patch14_clip_224.metaclip_2pt5b': _cfg(
        hf_hub_id='facebook/metaclip-l14-fullcc2.5b',
        hf_hub_filename='metaclip_l14_fullcc2.5b.bin',
        license='cc-by-nc-4.0',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=768),
    'vit_huge_patch14_clip_224.metaclip_2pt5b': _cfg(
        hf_hub_id='facebook/metaclip-h14-fullcc2.5b',
        hf_hub_filename='metaclip_h14_fullcc2.5b.bin',
        license='cc-by-nc-4.0',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=1024),

    'vit_base_patch32_clip_224.openai': _cfg(
        hf_hub_id='timm/vit_base_patch32_clip_224.openai',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),
    'vit_base_patch16_clip_224.openai': _cfg(
        hf_hub_id='timm/vit_base_patch16_clip_224.openai',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),
    'vit_large_patch14_clip_224.openai': _cfg(
        hf_hub_id='timm/vit_large_patch14_clip_224.openai',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, crop_pct=1.0, num_classes=768),
    'vit_large_patch14_clip_336.openai': _cfg(
        hf_hub_id='timm/vit_large_patch14_clip_336.openai', hf_hub_filename='open_clip_pytorch_model.bin',
        notes=('natively QuickGELU, use quickgelu model variant for original results',),
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        crop_pct=1.0, input_size=(3, 336, 336), num_classes=768),

    # experimental (may be removed)
    'vit_base_patch32_plus_256.untrained': _cfg(url='', input_size=(3, 256, 256), crop_pct=0.95),
    'vit_base_patch16_plus_240.untrained': _cfg(url='', input_size=(3, 240, 240), crop_pct=0.95),
    'vit_small_patch16_36x1_224.untrained': _cfg(url=''),
    'vit_small_patch16_18x2_224.untrained': _cfg(url=''),
    'vit_base_patch16_18x2_224.untrained': _cfg(url=''),

    # EVA fine-tuned weights from MAE style MIM - EVA-CLIP target pretrain
    # https://github.com/baaivision/EVA/blob/7ecf2c0a370d97967e86d047d7af9188f78d2df3/eva/README.md#eva-l-learning-better-mim-representations-from-eva-clip
    'eva_large_patch14_196.in22k_ft_in22k_in1k': _cfg(
        # hf_hub_id='BAAI/EVA', hf_hub_filename='eva_l_psz14_196px_21k_to_1k_ft_88p6.pt',
        hf_hub_id='timm/', license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        input_size=(3, 196, 196), crop_pct=1.0),
    'eva_large_patch14_336.in22k_ft_in22k_in1k': _cfg(
        # hf_hub_id='BAAI/EVA', hf_hub_filename='eva_l_psz14_336px_21k_to_1k_ft_89p2.pt',
        hf_hub_id='timm/', license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        input_size=(3, 336, 336), crop_pct=1.0, crop_mode='squash'),
    'eva_large_patch14_196.in22k_ft_in1k': _cfg(
        # hf_hub_id='BAAI/EVA', hf_hub_filename='eva_l_psz14_196px_1k_ft_88p0.pt',
        hf_hub_id='timm/', license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        input_size=(3, 196, 196), crop_pct=1.0),
    'eva_large_patch14_336.in22k_ft_in1k': _cfg(
        # hf_hub_id='BAAI/EVA', hf_hub_filename='eva_l_psz14_336px_1k_ft_88p65.pt',
        hf_hub_id='timm/', license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD,
        input_size=(3, 336, 336), crop_pct=1.0, crop_mode='squash'),

    'flexivit_small.1200ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_s_i1k.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_small.600ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_s_i1k_600ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_small.300ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_s_i1k_300ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),

    'flexivit_base.1200ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_b_i1k.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_base.600ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_b_i1k_600ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_base.300ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_b_i1k_300ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_base.1000ep_in21k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_b_i21k_1000ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95, num_classes=21843),
    'flexivit_base.300ep_in21k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_b_i21k_300ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95, num_classes=21843),

    'flexivit_large.1200ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_l_i1k.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_large.600ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_l_i1k_600ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),
    'flexivit_large.300ep_in1k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/flexivit_l_i1k_300ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95),

    'flexivit_base.patch16_in21k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/vit_b16_i21k_300ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95, num_classes=21843),
    'flexivit_base.patch30_in21k': _cfg(
        url='https://storage.googleapis.com/big_vision/flexivit/vit_b30_i21k_300ep.npz', custom_load=True,
        hf_hub_id='timm/',
        input_size=(3, 240, 240), crop_pct=0.95, num_classes=21843),

    'vit_base_patch16_xp_224.untrained': _cfg(url=''),
    'vit_large_patch14_xp_224.untrained': _cfg(url=''),
    'vit_huge_patch14_xp_224.untrained': _cfg(url=''),

    'vit_base_patch16_224.mae': _cfg(
        url='https://dl.fbaipublicfiles.com/mae/pretrain/mae_pretrain_vit_base.pth',
        hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_large_patch16_224.mae': _cfg(
        url='https://dl.fbaipublicfiles.com/mae/pretrain/mae_pretrain_vit_large.pth',
        hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_huge_patch14_224.mae': _cfg(
        url='https://dl.fbaipublicfiles.com/mae/pretrain/mae_pretrain_vit_huge.pth',
        hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),

    'vit_huge_patch14_gap_224.in1k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN1K-vit.h.14-300e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_huge_patch14_gap_224.in22k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN22K-vit.h.14-900e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_huge_patch16_gap_448.in1k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN1K-vit.h.16-448px-300e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        input_size=(3, 448, 448), crop_pct=1.0,
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_giant_patch16_gap_224.in22k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN22K-vit.g.16-600e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),

    'vit_base_patch16_siglip_224.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP',
        hf_hub_filename='open_clip_pytorch_model.bin',
        num_classes=0),
    'vit_base_patch16_siglip_256.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP-256',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 256, 256),
        num_classes=0),
    'vit_base_patch16_siglip_384.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP-384',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 384, 384),
        num_classes=0),
    'vit_base_patch16_siglip_512.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP-512',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 512, 512),
        num_classes=0),
    'vit_large_patch16_siglip_256.webli': _cfg(
        hf_hub_id='timm/ViT-L-16-SigLIP-256',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 256, 256),
        num_classes=0),
    'vit_large_patch16_siglip_384.webli': _cfg(
        hf_hub_id='timm/ViT-L-16-SigLIP-384',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 384, 384),
        num_classes=0),
    'vit_so400m_patch14_siglip_224.webli': _cfg(
        hf_hub_id='timm/ViT-SO400M-14-SigLIP',
        hf_hub_filename='open_clip_pytorch_model.bin',
        num_classes=0),
    'vit_so400m_patch14_siglip_384.webli': _cfg(
        hf_hub_id='timm/ViT-SO400M-14-SigLIP-384',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 384, 384),
        num_classes=0),

    'vit_base_patch16_siglip_gap_224.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP',
        hf_hub_filename='open_clip_pytorch_model.bin',
        num_classes=0),
    'vit_base_patch16_siglip_gap_256.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP-256',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 256, 256),
        num_classes=0),
    'vit_base_patch16_siglip_gap_384.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP-384',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 384, 384),
        num_classes=0),
    'vit_base_patch16_siglip_gap_512.webli': _cfg(
        hf_hub_id='timm/ViT-B-16-SigLIP-512',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 512, 512),
        num_classes=0),
    'vit_large_patch16_siglip_gap_256.webli': _cfg(
        hf_hub_id='timm/ViT-L-16-SigLIP-256',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 256, 256),
        num_classes=0),
    'vit_large_patch16_siglip_gap_384.webli': _cfg(
        hf_hub_id='timm/ViT-L-16-SigLIP-384',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 384, 384),
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_224.webli': _cfg(
        hf_hub_id='timm/ViT-SO400M-14-SigLIP',
        hf_hub_filename='open_clip_pytorch_model.bin',
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_224.pali_mix': _cfg(
        hf_hub_id='google/paligemma-3b-mix-224-jax',
        hf_hub_filename='paligemma-3b-mix-224.npz',
        custom_load='hf',
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_224.pali_pt': _cfg(
        hf_hub_id='google/paligemma-3b-pt-224-jax',
        hf_hub_filename='paligemma-3b-pt-224.npz',
        custom_load='hf',
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_384.webli': _cfg(
        hf_hub_id='timm/ViT-SO400M-14-SigLIP-384',
        hf_hub_filename='open_clip_pytorch_model.bin',
        input_size=(3, 384, 384), crop_pct=1.0,
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_448.pali_mix': _cfg(
        hf_hub_id='google/paligemma-3b-mix-448-jax',
        hf_hub_filename='paligemma-3b-mix-448.npz',
        custom_load='hf',
        input_size=(3, 448, 448), crop_pct=1.0,
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_448.pali_pt': _cfg(
        hf_hub_id='google/paligemma-3b-pt-448-jax',
        hf_hub_filename='paligemma-3b-pt-448.npz',
        custom_load='hf',
        input_size=(3, 448, 448), crop_pct=1.0,
        num_classes=0),
    'vit_so400m_patch14_siglip_gap_896.pali_pt': _cfg(
        hf_hub_id='google/paligemma-3b-pt-896-jax',
        hf_hub_filename='paligemma-3b-pt-896.npz',
        custom_load='hf',
        input_size=(3, 896, 896), crop_pct=1.0,
        num_classes=0),

    'vit_xsmall_patch16_clip_224.tinyclip_yfcc15m': _cfg(
        hf_hub_id='timm/',
        hf_hub_filename='open_clip_pytorch_model.bin',
        license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),
    'vit_medium_patch32_clip_224.tinyclip_laion400m': _cfg(
        hf_hub_id='timm/',
        hf_hub_filename='open_clip_pytorch_model.bin',
        license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),
    'vit_medium_patch16_clip_224.tinyclip_yfcc15m': _cfg(
        hf_hub_id='timm/',
        hf_hub_filename='open_clip_pytorch_model.bin',
        license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),
    'vit_betwixt_patch32_clip_224.tinyclip_laion400m': _cfg(
        hf_hub_id='timm/',
        hf_hub_filename='open_clip_pytorch_model.bin',
        license='mit',
        mean=OPENAI_CLIP_MEAN, std=OPENAI_CLIP_STD, num_classes=512),

    'vit_wee_patch16_reg1_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_pwee_patch16_reg1_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_little_patch16_reg1_gap_256.sbb_in12k_ft_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_little_patch16_reg1_gap_256.sbb_in12k': _cfg(
        hf_hub_id='timm/',
        num_classes=11821,
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_little_patch16_reg4_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_medium_patch16_reg1_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_medium_patch16_reg4_gap_256.sbb_in12k_ft_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_medium_patch16_reg4_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_medium_patch16_reg4_gap_256.sbb_in12k': _cfg(
        hf_hub_id='timm/',
        num_classes=11821,
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_mediumd_patch16_reg4_gap_256.sbb_in12k_ft_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_mediumd_patch16_reg4_gap_256.sbb_in12k': _cfg(
        hf_hub_id='timm/',
        num_classes=11821,
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_betwixt_patch16_reg1_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_betwixt_patch16_reg4_gap_256.sbb_in12k_ft_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_betwixt_patch16_reg4_gap_256.sbb_in1k': _cfg(
        hf_hub_id='timm/',
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_betwixt_patch16_reg4_gap_256.sbb_in12k': _cfg(
        hf_hub_id='timm/',
        num_classes=11821,
        input_size=(3, 256, 256), crop_pct=0.95),
    'vit_base_patch16_reg4_gap_256': _cfg(
        input_size=(3, 256, 256)),

    'vit_so150m_patch16_reg4_gap_256': _cfg(
        input_size=(3, 256, 256)),
    'vit_so150m_patch16_reg4_map_256': _cfg(
        input_size=(3, 256, 256)),
}

_quick_gelu_cfgs = [
    'vit_large_patch14_clip_224.dfn2b',
    'vit_huge_patch14_clip_224.dfn5b',
    'vit_huge_patch14_clip_378.dfn5b',
    'vit_base_patch32_clip_224.metaclip_2pt5b',
    'vit_base_patch16_clip_224.metaclip_2pt5b',
    'vit_large_patch14_clip_224.metaclip_2pt5b',
    'vit_huge_patch14_clip_224.metaclip_2pt5b',
    'vit_base_patch32_clip_224.openai',
    'vit_base_patch16_clip_224.openai',
    'vit_large_patch14_clip_224.openai',
    'vit_large_patch14_clip_336.openai',
]
default_cfgs.update({
    n.replace('_clip_', '_clip_quickgelu_'): default_cfgs[n] for n in _quick_gelu_cfgs
})
default_cfgs = generate_default_cfgs(default_cfgs)


def _create_vision_transformer(variant: str, pretrained: bool = False, **kwargs) -> VisionTransformer:
    out_indices = kwargs.pop('out_indices', 3)
    if 'flexi' in variant:
        # FIXME Google FlexiViT pretrained models have a strong preference for bilinear patch / embed
        # interpolation, other pretrained models resize better w/ anti-aliased bicubic interpolation.
        _filter_fn = partial(checkpoint_filter_fn, interpolation='bilinear', antialias=False)
    else:
        _filter_fn = checkpoint_filter_fn

    # FIXME attn pool (currently only in siglip) params removed if pool disabled, is there a better soln?
    strict = True
    if 'siglip' in variant and kwargs.get('global_pool', None) != 'map':
        strict = False

    return build_model_with_cfg(
        VisionTransformer,
        variant,
        pretrained,
        pretrained_filter_fn=_filter_fn,
        pretrained_strict=strict,
        feature_cfg=dict(out_indices=out_indices, feature_cls='getter'),
        **kwargs,
    )


@register_model
def vit_tiny_patch16_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Tiny (Vit-Ti/16)
    """
    model_args = dict(patch_size=16, embed_dim=192, depth=12, num_heads=3)
    model = _create_vision_transformer('vit_tiny_patch16_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_tiny_patch16_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Tiny (Vit-Ti/16) @ 384x384.
    """
    model_args = dict(patch_size=16, embed_dim=192, depth=12, num_heads=3)
    model = _create_vision_transformer('vit_tiny_patch16_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch32_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Small (ViT-S/32)
    """
    model_args = dict(patch_size=32, embed_dim=384, depth=12, num_heads=6)
    model = _create_vision_transformer('vit_small_patch32_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch32_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Small (ViT-S/32) at 384x384.
    """
    model_args = dict(patch_size=32, embed_dim=384, depth=12, num_heads=6)
    model = _create_vision_transformer('vit_small_patch32_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch16_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Small (ViT-S/16)
    """
    model_args = dict(patch_size=16, embed_dim=384, depth=12, num_heads=6)
    model = _create_vision_transformer('vit_small_patch16_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch16_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Small (ViT-S/16)
    """
    model_args = dict(patch_size=16, embed_dim=384, depth=12, num_heads=6)
    model = _create_vision_transformer('vit_small_patch16_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch8_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Small (ViT-S/8)
    """
    model_args = dict(patch_size=8, embed_dim=384, depth=12, num_heads=6)
    model = _create_vision_transformer('vit_small_patch8_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/32) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=32, embed_dim=768, depth=12, num_heads=12)
    model = _create_vision_transformer('vit_base_patch32_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base model (ViT-B/32) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 384x384, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=32, embed_dim=768, depth=12, num_heads=12)
    model = _create_vision_transformer('vit_base_patch32_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/16) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 224x224, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=16, embed_dim=768, depth=12, num_heads=12)
    model = _create_vision_transformer('vit_base_patch16_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base model (ViT-B/16) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 384x384, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=16, embed_dim=768, depth=12, num_heads=12)
    model = _create_vision_transformer('vit_base_patch16_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch8_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/8) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 224x224, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=8, embed_dim=768, depth=12, num_heads=12)
    model = _create_vision_transformer('vit_base_patch8_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch32_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/32) from original paper (https://arxiv.org/abs/2010.11929). No pretrained weights.
    """
    model_args = dict(patch_size=32, embed_dim=1024, depth=24, num_heads=16)
    model = _create_vision_transformer('vit_large_patch32_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch32_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/32) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 384x384, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=32, embed_dim=1024, depth=24, num_heads=16)
    model = _create_vision_transformer('vit_large_patch32_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch16_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/16) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 224x224, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=16, embed_dim=1024, depth=24, num_heads=16)
    model = _create_vision_transformer('vit_large_patch16_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch16_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/16) from original paper (https://arxiv.org/abs/2010.11929).
    ImageNet-1k weights fine-tuned from in21k @ 384x384, source https://github.com/google-research/vision_transformer.
    """
    model_args = dict(patch_size=16, embed_dim=1024, depth=24, num_heads=16)
    model = _create_vision_transformer('vit_large_patch16_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14)
    """
    model_args = dict(patch_size=14, embed_dim=1024, depth=24, num_heads=16)
    model = _create_vision_transformer('vit_large_patch14_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) from original paper (https://arxiv.org/abs/2010.11929).
    """
    model_args = dict(patch_size=14, embed_dim=1280, depth=32, num_heads=16)
    model = _create_vision_transformer('vit_huge_patch14_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_giant_patch14_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Giant (little-g) model (ViT-g/14) from `Scaling Vision Transformers` - https://arxiv.org/abs/2106.04560
    """
    model_args = dict(patch_size=14, embed_dim=1408, mlp_ratio=48/11, depth=40, num_heads=16)
    model = _create_vision_transformer('vit_giant_patch14_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_gigantic_patch14_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Gigantic (big-G) model (ViT-G/14) from `Scaling Vision Transformers` - https://arxiv.org/abs/2106.04560
    """
    model_args = dict(patch_size=14, embed_dim=1664, mlp_ratio=64/13, depth=48, num_heads=16)
    model = _create_vision_transformer(
        'vit_gigantic_patch14_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_224_miil(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/16) from original paper (https://arxiv.org/abs/2010.11929).
    Weights taken from: https://github.com/Alibaba-MIIL/ImageNet21K
    """
    model_args = dict(patch_size=16, embed_dim=768, depth=12, num_heads=12, qkv_bias=False)
    model = _create_vision_transformer(
        'vit_base_patch16_224_miil', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch16_gap_240(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Medium (ViT-M/16) w/o class token, w/ avg-pool @ 240x240
    """
    model_args = dict(
        patch_size=16, embed_dim=512, depth=12, num_heads=8, class_token=False,
        global_pool='avg', qkv_bias=False, init_values=1e-6, fc_norm=False)
    model = _create_vision_transformer(
        'vit_medium_patch16_gap_240', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch16_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Medium (ViT-M/16) w/o class token, w/ avg-pool @ 256x256
    """
    model_args = dict(
        patch_size=16, embed_dim=512, depth=12, num_heads=8, class_token=False,
        global_pool='avg', qkv_bias=False, init_values=1e-6, fc_norm=False)
    model = _create_vision_transformer(
        'vit_medium_patch16_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch16_gap_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Medium (ViT-M/16) w/o class token, w/ avg-pool @ 384x384
    """
    model_args = dict(
        patch_size=16, embed_dim=512, depth=12, num_heads=8, class_token=False,
        global_pool='avg', qkv_bias=False, init_values=1e-6, fc_norm=False)
    model = _create_vision_transformer(
        'vit_medium_patch16_gap_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_betwixt_patch16_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Betwixt (ViT-b/16) w/o class token, w/ avg-pool @ 256x256
    """
    model_args = dict(
        patch_size=16, embed_dim=640, depth=12, num_heads=10, class_token=False,
        global_pool='avg', qkv_bias=False, init_values=1e-6, fc_norm=False)
    model = _create_vision_transformer(
        'vit_medium_patch16_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_gap_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/16) w/o class token, w/ avg-pool @ 224x224
    """
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=16, class_token=False, global_pool='avg', fc_norm=False)
    model = _create_vision_transformer(
        'vit_base_patch16_gap_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_gap_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) w/ no class token, avg pool
    """
    model_args = dict(
        patch_size=14, embed_dim=1280, depth=32, num_heads=16, class_token=False, global_pool='avg', fc_norm=False)
    model = _create_vision_transformer(
        'vit_huge_patch14_gap_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch16_gap_448(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/16) w/ no class token, avg pool @ 448x448
    """
    model_args = dict(
        patch_size=16, embed_dim=1280, depth=32, num_heads=16, class_token=False, global_pool='avg', fc_norm=False)
    model = _create_vision_transformer(
        'vit_huge_patch16_gap_448', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_giant_patch16_gap_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Giant (little-gg) model (ViT-g/16) w/ no class token, avg pool
    """
    model_args = dict(
        patch_size=16, embed_dim=1408, depth=40, num_heads=16, mlp_ratio=48/11,
        class_token=False, global_pool='avg', fc_norm=False)
    model = _create_vision_transformer(
        'vit_giant_patch16_gap_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_xsmall_patch16_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    # TinyCLIP 8M
    model_args = dict(embed_dim=256, depth=10, num_heads=4, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_xsmall_patch16_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch32_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    # TinyCLIP 40M
    model_args = dict(
        patch_size=32, embed_dim=512, depth=12, num_heads=8, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_medium_patch32_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch16_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    # TinyCLIP 39M
    model_args = dict(embed_dim=512, depth=12, num_heads=8, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_medium_patch16_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_betwixt_patch32_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    # TinyCLIP 61M
    model_args = dict(
        patch_size=32, embed_dim=640, depth=12, num_heads=10, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_betwixt_patch32_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/32 CLIP image tower @ 224x224
    """
    model_args = dict(
        patch_size=32, embed_dim=768, depth=12, num_heads=12, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_base_patch32_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_clip_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/32 CLIP image tower @ 256x256
    """
    model_args = dict(
        patch_size=32, embed_dim=768, depth=12, num_heads=12, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_base_patch32_clip_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_clip_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/32 CLIP image tower @ 384x384
    """
    model_args = dict(
        patch_size=32, embed_dim=768, depth=12, num_heads=12, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_base_patch32_clip_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_clip_448(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/32 CLIP image tower @ 448x448
    """
    model_args = dict(
        patch_size=32, embed_dim=768, depth=12, num_heads=12, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_base_patch32_clip_448', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/16 CLIP image tower
    """
    model_args = dict(patch_size=16, embed_dim=768, depth=12, num_heads=12, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_base_patch16_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_clip_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/16 CLIP image tower @ 384x384
    """
    model_args = dict(patch_size=16, embed_dim=768, depth=12, num_heads=12, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_base_patch16_clip_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14) CLIP image tower
    """
    model_args = dict(patch_size=14, embed_dim=1024, depth=24, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_large_patch14_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_clip_336(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14) CLIP image tower @ 336x336
    """
    model_args = dict(patch_size=14, embed_dim=1024, depth=24, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_large_patch14_clip_336', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) CLIP image tower.
    """
    model_args = dict(patch_size=14, embed_dim=1280, depth=32, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_huge_patch14_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_clip_336(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) CLIP image tower @ 336x336
    """
    model_args = dict(patch_size=14, embed_dim=1280, depth=32, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_huge_patch14_clip_336', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_clip_378(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) CLIP image tower @ 378x378
    """
    model_args = dict(patch_size=14, embed_dim=1280, depth=32, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_huge_patch14_clip_378', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_giant_patch14_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Giant (little-g) model (ViT-g/14) from `Scaling Vision Transformers` - https://arxiv.org/abs/2106.04560
    Pretrained weights from CLIP image tower.
    """
    model_args = dict(
        patch_size=14, embed_dim=1408, mlp_ratio=48/11, depth=40, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_giant_patch14_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_gigantic_patch14_clip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-bigG model (ViT-G/14) from `Scaling Vision Transformers` - https://arxiv.org/abs/2106.04560
    Pretrained weights from CLIP image tower.
    """
    model_args = dict(
        patch_size=14, embed_dim=1664, mlp_ratio=64/13, depth=48, num_heads=16, pre_norm=True, norm_layer=nn.LayerNorm)
    model = _create_vision_transformer(
        'vit_gigantic_patch14_clip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch32_clip_quickgelu_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/32 CLIP image tower @ 224x224
    """
    model_args = dict(
        patch_size=32, embed_dim=768, depth=12, num_heads=12, pre_norm=True,
        norm_layer=nn.LayerNorm, act_layer='quick_gelu')
    model = _create_vision_transformer(
        'vit_base_patch32_clip_quickgelu_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_clip_quickgelu_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/16 CLIP image tower w/ QuickGELU act
    """
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, pre_norm=True,
        norm_layer=nn.LayerNorm, act_layer='quick_gelu')
    model = _create_vision_transformer(
        'vit_base_patch16_clip_quickgelu_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_clip_quickgelu_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14) CLIP image tower w/ QuickGELU act
    """
    model_args = dict(
        patch_size=14, embed_dim=1024, depth=24, num_heads=16, pre_norm=True,
        norm_layer=nn.LayerNorm, act_layer='quick_gelu')
    model = _create_vision_transformer(
        'vit_large_patch14_clip_quickgelu_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_clip_quickgelu_336(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14) CLIP image tower @ 336x336 w/ QuickGELU act
    """
    model_args = dict(
        patch_size=14, embed_dim=1024, depth=24, num_heads=16, pre_norm=True,
        norm_layer=nn.LayerNorm, act_layer='quick_gelu')
    model = _create_vision_transformer(
        'vit_large_patch14_clip_quickgelu_336', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_clip_quickgelu_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) CLIP image tower w/ QuickGELU act.
    """
    model_args = dict(
        patch_size=14, embed_dim=1280, depth=32, num_heads=16, pre_norm=True,
        norm_layer=nn.LayerNorm, act_layer='quick_gelu')
    model = _create_vision_transformer(
        'vit_huge_patch14_clip_quickgelu_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_clip_quickgelu_378(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) CLIP image tower @ 378x378 w/ QuickGELU act
    """
    model_args = dict(
        patch_size=14, embed_dim=1280, depth=32, num_heads=16, pre_norm=True,
        norm_layer=nn.LayerNorm, act_layer='quick_gelu')
    model = _create_vision_transformer(
        'vit_huge_patch14_clip_quickgelu_378', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


# Experimental models below

@register_model
def vit_base_patch32_plus_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/32+)
    """
    model_args = dict(patch_size=32, embed_dim=896, depth=12, num_heads=14, init_values=1e-5)
    model = _create_vision_transformer(
        'vit_base_patch32_plus_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_plus_240(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/16+)
    """
    model_args = dict(patch_size=16, embed_dim=896, depth=12, num_heads=14, init_values=1e-5)
    model = _create_vision_transformer(
        'vit_base_patch16_plus_240', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_rpn_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base (ViT-B/16) w/ residual post-norm
    """
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, qkv_bias=False, init_values=1e-5,
        class_token=False, block_fn=ResPostBlock, global_pool='avg')
    model = _create_vision_transformer(
        'vit_base_patch16_rpn_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch16_36x1_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base w/ LayerScale + 36 x 1 (36 block serial) config. Experimental, may remove.
    Based on `Three things everyone should know about Vision Transformers` - https://arxiv.org/abs/2203.09795
    Paper focuses on 24x2 + 48x1 for 'Small' width but those are extremely slow.
    """
    model_args = dict(patch_size=16, embed_dim=384, depth=36, num_heads=6, init_values=1e-5)
    model = _create_vision_transformer(
        'vit_small_patch16_36x1_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch16_18x2_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Small w/ LayerScale + 18 x 2 (36 block parallel) config. Experimental, may remove.
    Based on `Three things everyone should know about Vision Transformers` - https://arxiv.org/abs/2203.09795
    Paper focuses on 24x2 + 48x1 for 'Small' width but those are extremely slow.
    """
    model_args = dict(
        patch_size=16, embed_dim=384, depth=18, num_heads=6, init_values=1e-5, block_fn=ParallelThingsBlock)
    model = _create_vision_transformer(
        'vit_small_patch16_18x2_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_18x2_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Base w/ LayerScale + 18 x 2 (36 block parallel) config. Experimental, may remove.
    Based on `Three things everyone should know about Vision Transformers` - https://arxiv.org/abs/2203.09795
    """
    model_args = dict(
        patch_size=16, embed_dim=768, depth=18, num_heads=12, init_values=1e-5, block_fn=ParallelThingsBlock)
    model = _create_vision_transformer(
        'vit_base_patch16_18x2_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def eva_large_patch14_196(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ EVA-large model https://arxiv.org/abs/2211.07636 /via MAE MIM pretrain"""
    model_args = dict(patch_size=14, embed_dim=1024, depth=24, num_heads=16, global_pool='avg')
    model = _create_vision_transformer(
        'eva_large_patch14_196', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def eva_large_patch14_336(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ EVA-large model https://arxiv.org/abs/2211.07636 via MAE MIM pretrain"""
    model_args = dict(patch_size=14, embed_dim=1024, depth=24, num_heads=16, global_pool='avg')
    model = _create_vision_transformer('eva_large_patch14_336', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def flexivit_small(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ FlexiViT-Small
    """
    model_args = dict(patch_size=16, embed_dim=384, depth=12, num_heads=6, no_embed_class=True)
    model = _create_vision_transformer('flexivit_small', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def flexivit_base(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ FlexiViT-Base
    """
    model_args = dict(patch_size=16, embed_dim=768, depth=12, num_heads=12, no_embed_class=True)
    model = _create_vision_transformer('flexivit_base', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def flexivit_large(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ FlexiViT-Large
    """
    model_args = dict(patch_size=16, embed_dim=1024, depth=24, num_heads=16, no_embed_class=True)
    model = _create_vision_transformer('flexivit_large', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_xp_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14) w/ parallel blocks and qk norm enabled.
    """
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, pre_norm=True, no_embed_class=True,
        norm_layer=RmsNorm, block_fn=ParallelScalingBlock, qkv_bias=False, qk_norm=True,
    )
    model = _create_vision_transformer(
        'vit_base_patch16_xp_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_xp_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Large model (ViT-L/14) w/ parallel blocks and qk norm enabled.
    """
    model_args = dict(
        patch_size=14, embed_dim=1024, depth=24, num_heads=16, pre_norm=True, no_embed_class=True,
        norm_layer=RmsNorm, block_fn=ParallelScalingBlock, qkv_bias=False, qk_norm=True,
    )
    model = _create_vision_transformer(
        'vit_large_patch14_xp_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_huge_patch14_xp_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-Huge model (ViT-H/14) w/ parallel blocks and qk norm enabled.
    """
    model_args = dict(
        patch_size=14, embed_dim=1280, depth=32, num_heads=16, pre_norm=True, no_embed_class=True,
        norm_layer=RmsNorm, block_fn=ParallelScalingBlock, qkv_bias=False, qk_norm=True,
    )
    model = _create_vision_transformer(
        'vit_huge_patch14_xp_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch14_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-S/14 for DINOv2
    """
    model_args = dict(patch_size=14, embed_dim=384, depth=12, num_heads=6, init_values=1e-5)
    model = _create_vision_transformer(
        'vit_small_patch14_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch14_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/14 for DINOv2
    """
    model_args = dict(patch_size=14, embed_dim=768, depth=12, num_heads=12, init_values=1e-5)
    model = _create_vision_transformer(
        'vit_base_patch14_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-L/14 for DINOv2
    """
    model_args = dict(patch_size=14, embed_dim=1024, depth=24, num_heads=16, init_values=1e-5)
    model = _create_vision_transformer(
        'vit_large_patch14_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_giant_patch14_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-G/14 for DINOv2
    """
    # The hidden_features of SwiGLU is calculated by:
    # hidden_features = (int(hidden_features * 2 / 3) + 7) // 8 * 8
    # When embed_dim=1536, hidden_features=4096
    # With SwiGLUPacked, we need to set hidden_features = 2 * 4096 = 8192
    model_args = dict(
        patch_size=14, embed_dim=1536, depth=40, num_heads=24, init_values=1e-5,
        mlp_ratio=2.66667 * 2, mlp_layer=SwiGLUPacked, act_layer=nn.SiLU
    )
    model = _create_vision_transformer(
        'vit_giant_patch14_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_small_patch14_reg4_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-S/14 for DINOv2 w/ 4 registers
    """
    model_args = dict(
        patch_size=14, embed_dim=384, depth=12, num_heads=6, init_values=1e-5,
        reg_tokens=4, no_embed_class=True,
    )
    model = _create_vision_transformer(
        'vit_small_patch14_reg4_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch14_reg4_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-B/14 for DINOv2 w/ 4 registers
    """
    model_args = dict(
        patch_size=14, embed_dim=768, depth=12, num_heads=12, init_values=1e-5,
        reg_tokens=4, no_embed_class=True,
    )
    model = _create_vision_transformer(
        'vit_base_patch14_reg4_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch14_reg4_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-L/14 for DINOv2 w/ 4 registers
    """
    model_args = dict(
        patch_size=14, embed_dim=1024, depth=24, num_heads=16, init_values=1e-5,
        reg_tokens=4, no_embed_class=True,
    )
    model = _create_vision_transformer(
        'vit_large_patch14_reg4_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_giant_patch14_reg4_dinov2(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ ViT-G/14 for DINOv2
    """
    # The hidden_features of SwiGLU is calculated by:
    # hidden_features = (int(hidden_features * 2 / 3) + 7) // 8 * 8
    # When embed_dim=1536, hidden_features=4096
    # With SwiGLUPacked, we need to set hidden_features = 2 * 4096 = 8192
    model_args = dict(
        patch_size=14, embed_dim=1536, depth=40, num_heads=24, init_values=1e-5, mlp_ratio=2.66667 * 2,
        mlp_layer=SwiGLUPacked, act_layer=nn.SiLU, reg_tokens=4, no_embed_class=True,
    )
    model = _create_vision_transformer(
        'vit_giant_patch14_reg4_dinov2', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_512(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_512', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch16_siglip_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=1024, depth=24, num_heads=16, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_large_patch16_siglip_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch16_siglip_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=1024, depth=24, num_heads=16, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_large_patch16_siglip_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so400m_patch14_siglip_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=14, embed_dim=1152, depth=27, num_heads=16, mlp_ratio=3.7362, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_so400m_patch14_siglip_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so400m_patch14_siglip_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=14, embed_dim=1152, depth=27, num_heads=16, mlp_ratio=3.7362, class_token=False, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_so400m_patch14_siglip_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_gap_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_gap_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_gap_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_gap_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_siglip_gap_512(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_base_patch16_siglip_gap_512', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch16_siglip_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=16, embed_dim=1024, depth=24, num_heads=16, class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_large_patch16_siglip_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_large_patch16_siglip_gap_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=16, embed_dim=1024, depth=24, num_heads=16, class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_large_patch16_siglip_gap_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so400m_patch14_siglip_gap_224(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=14, embed_dim=1152, depth=27, num_heads=16, mlp_ratio=3.7362,
        class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_so400m_patch14_siglip_gap_224', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so400m_patch14_siglip_gap_384(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=14, embed_dim=1152, depth=27, num_heads=16, mlp_ratio=3.7362,
        class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_so400m_patch14_siglip_gap_384', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so400m_patch14_siglip_gap_448(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=14, embed_dim=1152, depth=27, num_heads=16, mlp_ratio=3.7362,
        class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_so400m_patch14_siglip_gap_448', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so400m_patch14_siglip_gap_896(pretrained: bool = False, **kwargs) -> VisionTransformer:
    """ A SigLIP variant of ViT with global average pooling (GAP) instead of attention pooling (MAP)."""
    model_args = dict(
        patch_size=14, embed_dim=1152, depth=27, num_heads=16, mlp_ratio=3.7362,
        class_token=False, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_so400m_patch14_siglip_gap_896', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_wee_patch16_reg1_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=256, depth=14, num_heads=4, init_values=1e-5, mlp_ratio=5,
        class_token=False, no_embed_class=True, reg_tokens=1, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_wee_patch16_reg1_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_pwee_patch16_reg1_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=256, depth=16, num_heads=4, init_values=1e-5, mlp_ratio=5,
        class_token=False, no_embed_class=True, reg_tokens=1, global_pool='avg', block_fn=ParallelScalingBlock,
    )
    model = _create_vision_transformer(
        'vit_pwee_patch16_reg1_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_little_patch16_reg1_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=320, depth=14, num_heads=5, init_values=1e-5, mlp_ratio=5.6,
        class_token=False, no_embed_class=True, reg_tokens=1, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_little_patch16_reg1_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_little_patch16_reg4_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=320, depth=14, num_heads=5, init_values=1e-5, mlp_ratio=5.6,
        class_token=False, no_embed_class=True, reg_tokens=4, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_little_patch16_reg4_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch16_reg1_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=512, depth=12, num_heads=8, init_values=1e-5,
        class_token=False, no_embed_class=True, reg_tokens=1, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_medium_patch16_reg1_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_medium_patch16_reg4_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=512, depth=12, num_heads=8, init_values=1e-5,
        class_token=False, no_embed_class=True, reg_tokens=4, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_medium_patch16_reg4_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_mediumd_patch16_reg4_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=512, depth=20, num_heads=8, init_values=1e-5,
        class_token=False, no_embed_class=True, reg_tokens=4, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_mediumd_patch16_reg4_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_betwixt_patch16_reg1_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=640, depth=12, num_heads=10, init_values=1e-5,
        class_token=False, no_embed_class=True, reg_tokens=1, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_betwixt_patch16_reg1_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_betwixt_patch16_reg4_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=640, depth=12, num_heads=10, init_values=1e-5,
        class_token=False, no_embed_class=True, reg_tokens=4, global_pool='avg',
    )
    model = _create_vision_transformer(
        'vit_betwixt_patch16_reg4_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_base_patch16_reg4_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=768, depth=12, num_heads=12, class_token=False,
        no_embed_class=True, global_pool='avg', reg_tokens=4,
    )
    model = _create_vision_transformer(
        'vit_base_patch16_reg4_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so150m_patch16_reg4_map_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=896, depth=18, num_heads=14, mlp_ratio=2.572,
        class_token=False, reg_tokens=4, global_pool='map',
    )
    model = _create_vision_transformer(
        'vit_so150m_patch16_reg4_map_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


@register_model
def vit_so150m_patch16_reg4_gap_256(pretrained: bool = False, **kwargs) -> VisionTransformer:
    model_args = dict(
        patch_size=16, embed_dim=896, depth=18, num_heads=14, mlp_ratio=2.572,
        class_token=False, reg_tokens=4, global_pool='avg', fc_norm=False,
    )
    model = _create_vision_transformer(
        'vit_so150m_patch16_reg4_gap_256', pretrained=pretrained, **dict(model_args, **kwargs))
    return model


register_model_deprecations(__name__, {
    'vit_tiny_patch16_224_in21k': 'vit_tiny_patch16_224.augreg_in21k',
    'vit_small_patch32_224_in21k': 'vit_small_patch32_224.augreg_in21k',
    'vit_small_patch16_224_in21k': 'vit_small_patch16_224.augreg_in21k',
    'vit_base_patch32_224_in21k': 'vit_base_patch32_224.augreg_in21k',
    'vit_base_patch16_224_in21k': 'vit_base_patch16_224.augreg_in21k',
    'vit_base_patch8_224_in21k': 'vit_base_patch8_224.augreg_in21k',
    'vit_large_patch32_224_in21k': 'vit_large_patch32_224.orig_in21k',
    'vit_large_patch16_224_in21k': 'vit_large_patch16_224.augreg_in21k',
    'vit_huge_patch14_224_in21k': 'vit_huge_patch14_224.orig_in21k',
    'vit_base_patch32_224_sam': 'vit_base_patch32_224.sam',
    'vit_base_patch16_224_sam': 'vit_base_patch16_224.sam',
    'vit_small_patch16_224_dino': 'vit_small_patch16_224.dino',
    'vit_small_patch8_224_dino': 'vit_small_patch8_224.dino',
    'vit_base_patch16_224_dino': 'vit_base_patch16_224.dino',
    'vit_base_patch8_224_dino': 'vit_base_patch8_224.dino',
    'vit_base_patch16_224_miil_in21k': 'vit_base_patch16_224_miil.in21k',
    'vit_base_patch32_224_clip_laion2b': 'vit_base_patch32_clip_224.laion2b',
    'vit_large_patch14_224_clip_laion2b': 'vit_large_patch14_clip_224.laion2b',
    'vit_huge_patch14_224_clip_laion2b': 'vit_huge_patch14_clip_224.laion2b',
    'vit_giant_patch14_224_clip_laion2b': 'vit_giant_patch14_clip_224.laion2b',
})
